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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.100 by root, Mon Dec 25 11:25:49 2006 UTC vs.
Revision 1.232 by root, Wed Apr 4 02:07:19 2007 UTC

…		…
4	use strict;	4	use strict;
5		5
6	use Symbol;	6	use Symbol;
7	use List::Util;	7	use List::Util;
8	use Storable;	8	use Storable;
		9	use Event;
9	use Opcode;	10	use Opcode;
10	use Safe;	11	use Safe;
11	use Safe::Hole;	12	use Safe::Hole;
12		13
13	use Coro;	14	use Coro 3.52 ();
		15	use Coro::State;
14	use Coro::Event;	16	use Coro::Event;
15	use Coro::Timer;	17	use Coro::Timer;
16	use Coro::Signal;	18	use Coro::Signal;
17	use Coro::Semaphore;	19	use Coro::Semaphore;
		20	use Coro::AIO;
18		21
19	use IO::AIO 2.3;	22	use BDB ();
		23	use Data::Dumper;
		24	use Digest::MD5;
		25	use Fcntl;
20	use YAML::Syck ();	26	use YAML::Syck ();
		27	use IO::AIO 2.32 ();
21	use Time::HiRes;	28	use Time::HiRes;
		29	use Compress::LZF;
22		30
		31	# configure various modules to our taste
		32	#
		33	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		34	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		35
23	use Event; $Event::Eval = 1; # no idea why this is required, but it is	36	$Event::Eval = 1; # no idea why this is required, but it is
24		37
25	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	38	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
26	$YAML::Syck::ImplicitUnicode = 1;	39	$YAML::Syck::ImplicitUnicode = 1;
27		40
28	$Coro::main->prio (Coro::PRIO_MIN);	41	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
29		42
30	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	43	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
31		44
32	our %COMMAND = ();	45	our %COMMAND = ();
33	our %COMMAND_TIME = ();	46	our %COMMAND_TIME = ();
		47
		48	our @EXTS = (); # list of extension package names
34	our %EXTCMD = ();	49	our %EXTCMD = ();
		50	our %EXT_CORO = (); # coroutines bound to extensions
		51	our %EXT_MAP = (); # pluggable maps
35		52
		53	our $RELOAD; # number of reloads so far
36	our @EVENT;	54	our @EVENT;
37	our $LIBDIR = datadir . "/ext";	55	our $LIBDIR = datadir . "/ext";
38		56
39	our $TICK = MAX_TIME * 1e-6;	57	our $TICK = MAX_TIME * 1e-6;
40	our $TICK_WATCHER;	58	our $TICK_WATCHER;
		59	our $AIO_POLL_WATCHER;
		60	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
41	our $NEXT_TICK;	61	our $NEXT_TICK;
		62	our $NOW;
		63	our $USE_FSYNC = 1; # use fsync to write maps - default off
		64
		65	our $BDB_POLL_WATCHER;
		66	our $DB_ENV;
42		67
43	our %CFG;	68	our %CFG;
44		69
45	our $UPTIME; $UPTIME ||= time;	70	our $UPTIME; $UPTIME ||= time;
		71	our $RUNTIME;
		72
		73	our %PLAYER; # all users
		74	our %MAP; # all maps
		75	our $LINK_MAP; # the special {link} map, which is always available
		76	our $RANDOM_MAPS = cf::localdir . "/random";
		77	our $BDB_ENV_DIR = cf::localdir . "/db";
		78
		79	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
		80	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
		81
		82	# used to convert map paths into valid unix filenames by replacing / by ∕
		83	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		84
		85	binmode STDOUT;
		86	binmode STDERR;
		87
		88	# read virtual server time, if available
		89	unless ($RUNTIME || !-e cf::localdir . "/runtime") {
		90	open my $fh, "<", cf::localdir . "/runtime"
		91	or die "unable to read runtime file: $!";
		92	$RUNTIME = <$fh> + 0.;
		93	}
		94
		95	mkdir cf::localdir;
		96	mkdir cf::localdir . "/" . cf::playerdir;
		97	mkdir cf::localdir . "/" . cf::tmpdir;
		98	mkdir cf::localdir . "/" . cf::uniquedir;
		99	mkdir $RANDOM_MAPS;
		100	mkdir $BDB_ENV_DIR;
		101
		102	our $EMERGENCY_POSITION;
		103
		104	sub cf::map::normalise;
46		105
47	#############################################################################	106	#############################################################################
48		107
49	=head2 GLOBAL VARIABLES	108	=head2 GLOBAL VARIABLES
50		109
51	=over 4	110	=over 4
52		111
53	=item $cf::UPTIME	112	=item $cf::UPTIME
54		113
55	The timestamp of the server start (so not actually an uptime).	114	The timestamp of the server start (so not actually an uptime).
		115
		116	=item $cf::RUNTIME
		117
		118	The time this server has run, starts at 0 and is increased by $cf::TICK on
		119	every server tick.
56		120
57	=item $cf::LIBDIR	121	=item $cf::LIBDIR
58		122
59	The perl library directory, where extensions and cf-specific modules can	123	The perl library directory, where extensions and cf-specific modules can
60	be found. It will be added to C<@INC> automatically.	124	be found. It will be added to C<@INC> automatically.
61		125
		126	=item $cf::NOW
		127
		128	The time of the last (current) server tick.
		129
62	=item $cf::TICK	130	=item $cf::TICK
63		131
64	The interval between server ticks, in seconds.	132	The interval between server ticks, in seconds.
65		133
66	=item %cf::CFG	134	=item %cf::CFG
67		135
68	Configuration for the server, loaded from C</etc/crossfire/config>, or	136	Configuration for the server, loaded from C</etc/crossfire/config>, or
69	from wherever your confdir points to.	137	from wherever your confdir points to.
		138
		139	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE
		140
		141	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)
		142	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick
		143	processing has been done. Call C<< ->wait >> on them to maximise the
		144	window of cpu time available, or simply to synchronise to the server tick.
70		145
71	=back	146	=back
72		147
73	=cut	148	=cut
74		149
75	BEGIN {	150	BEGIN {
76	*CORE::GLOBAL::warn = sub {	151	*CORE::GLOBAL::warn = sub {
77	my $msg = join "", @_;	152	my $msg = join "", @_;
		153	utf8::encode $msg;
		154
78	$msg .= "\n"	155	$msg .= "\n"
79	unless $msg =~ /\n$/;	156	unless $msg =~ /\n$/;
80		157
81	print STDERR "cfperl: $msg";
82	LOG llevError, "cfperl: $msg";	158	LOG llevError, $msg;
83	};	159	};
84	}	160	}
85		161
86	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	162	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
87	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	163	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
…		…
105		181
106	$Event::DIED = sub {	182	$Event::DIED = sub {
107	warn "error in event callback: @_";	183	warn "error in event callback: @_";
108	};	184	};
109		185
110	my %ext_pkg;
111	my @exts;
112	my @hook;
113
114	=head2 UTILITY FUNCTIONS	186	=head2 UTILITY FUNCTIONS
115		187
116	=over 4	188	=over 4
117		189
118	=cut	190	=item dumpval $ref
119		191
		192	=cut
		193
		194	sub dumpval {
		195	eval {
		196	local $SIG{__DIE__};
		197	my $d;
		198	if (1) {
		199	$d = new Data::Dumper([$_[0]], ["*var"]);
		200	$d->Terse(1);
		201	$d->Indent(2);
		202	$d->Quotekeys(0);
		203	$d->Useqq(1);
		204	#$d->Bless(...);
		205	$d->Seen($_[1]) if @_ > 1;
		206	$d = $d->Dump();
		207	}
		208	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		209	$d
		210	} || "[unable to dump $_[0]: '$@']";
		211	}
		212
120	use JSON::Syck (); # TODO# replace by JSON::PC once working	213	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
121		214
122	=item $ref = cf::from_json $json	215	=item $ref = cf::from_json $json
123		216
124	Converts a JSON string into the corresponding perl data structure.	217	Converts a JSON string into the corresponding perl data structure.
125		218
126	=cut
127
128	sub from_json($) {
129	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
130	JSON::Syck::Load $_[0]
131	}
132
133	=item $json = cf::to_json $ref	219	=item $json = cf::to_json $ref
134		220
135	Converts a perl data structure into its JSON representation.	221	Converts a perl data structure into its JSON representation.
136		222
137	=cut	223	=item cf::lock_wait $string
138		224
139	sub to_json($) {	225	Wait until the given lock is available. See cf::lock_acquire.
140	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	226
141	JSON::Syck::Dump $_[0]	227	=item my $lock = cf::lock_acquire $string
		228
		229	Wait until the given lock is available and then acquires it and returns
		230	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
		231	for example when the coroutine gets canceled), the lock is automatically
		232	returned.
		233
		234	Lock names should begin with a unique identifier (for example, cf::map::find
		235	uses map_find and cf::map::load uses map_load).
		236
		237	=cut
		238
		239	our %LOCK;
		240
		241	sub lock_wait($) {
		242	my ($key) = @_;
		243
		244	# wait for lock, if any
		245	while ($LOCK{$key}) {
		246	push @{ $LOCK{$key} }, $Coro::current;
		247	Coro::schedule;
		248	}
		249	}
		250
		251	sub lock_acquire($) {
		252	my ($key) = @_;
		253
		254	# wait, to be sure we are not locked
		255	lock_wait $key;
		256
		257	$LOCK{$key} = [];
		258
		259	Coro::guard {
		260	# wake up all waiters, to be on the safe side
		261	$_->ready for @{ delete $LOCK{$key} };
		262	}
		263	}
		264
		265	sub freeze_mainloop {
		266	return unless $TICK_WATCHER->is_active;
		267
		268	my $guard = Coro::guard {
		269	$TICK_WATCHER->start;
		270	};
		271	$TICK_WATCHER->stop;
		272	$guard
		273	}
		274
		275	=item cf::async { BLOCK }
		276
		277	Currently the same as Coro::async_pool, meaning you cannot use
		278	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		279	thing you are allowed to do is call C<prio> on it.
		280
		281	=cut
		282
		283	BEGIN { *async = \&Coro::async_pool }
		284
		285	=item cf::sync_job { BLOCK }
		286
		287	The design of crossfire+ requires that the main coro ($Coro::main) is
		288	always able to handle events or runnable, as crossfire+ is only partly
		289	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.
		290
		291	If it must be done, put the blocking parts into C<sync_job>. This will run
		292	the given BLOCK in another coroutine while waiting for the result. The
		293	server will be frozen during this time, so the block should either finish
		294	fast or be very important.
		295
		296	=cut
		297
		298	sub sync_job(&) {
		299	my ($job) = @_;
		300
		301	if ($Coro::current == $Coro::main) {
		302	# this is the main coro, too bad, we have to block
		303	# till the operation succeeds, freezing the server :/
		304
		305	# TODO: use suspend/resume instead
		306	# (but this is cancel-safe)
		307	my $freeze_guard = freeze_mainloop;
		308
		309	my $busy = 1;
		310	my @res;
		311
		312	(async {
		313	@res = eval { $job->() };
		314	warn $@ if $@;
		315	undef $busy;
		316	})->prio (Coro::PRIO_MAX);
		317
		318	while ($busy) {
		319	Coro::cede or Event::one_event;
		320	}
		321
		322	wantarray ? @res : $res[0]
		323	} else {
		324	# we are in another coroutine, how wonderful, everything just works
		325
		326	$job->()
		327	}
		328	}
		329
		330	=item $coro = cf::async_ext { BLOCK }
		331
		332	Like async, but this coro is automatically being canceled when the
		333	extension calling this is being unloaded.
		334
		335	=cut
		336
		337	sub async_ext(&) {
		338	my $cb = shift;
		339
		340	my $coro = &Coro::async ($cb);
		341
		342	$coro->on_destroy (sub {
		343	delete $EXT_CORO{$coro+0};
		344	});
		345	$EXT_CORO{$coro+0} = $coro;
		346
		347	$coro
		348	}
		349
		350	sub write_runtime {
		351	my $guard = cf::lock_acquire "write_runtime";
		352
		353	my $runtime = cf::localdir . "/runtime";
		354
		355	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		356	or return;
		357
		358	my $value = $cf::RUNTIME + 90 + 10;
		359	# 10 is the runtime save interval, for a monotonic clock
		360	# 60 allows for the watchdog to kill the server.
		361
		362	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		363	and return;
		364
		365	# always fsync - this file is important
		366	aio_fsync $fh
		367	and return;
		368
		369	close $fh
		370	or return;
		371
		372	aio_rename "$runtime~", $runtime
		373	and return;
		374
		375	1
		376	}
		377
		378	=item cf::datalog type => key => value, ...
		379
		380	Log a datalog packet of the given type with the given key-value pairs.
		381
		382	=cut
		383
		384	sub datalog($@) {
		385	my ($type, %kv) = @_;
		386	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
142	}	387	}
143		388
144	=back	389	=back
145		390
146	=cut	391	=cut
…		…
277	our @CB_TYPE = (); # registry for type (cf-object class) based events	522	our @CB_TYPE = (); # registry for type (cf-object class) based events
278	our @CB_MAP = ();	523	our @CB_MAP = ();
279		524
280	my %attachment;	525	my %attachment;
281		526
		527	sub cf::attachable::thawer_merge {
		528	# simply override everything except _meta
		529	local $_[0]{_meta};
		530	%{$_[0]} = %{$_[1]};
		531	}
		532
282	sub _attach_cb($$$$) {	533	sub _attach_cb($$$$) {
283	my ($registry, $event, $prio, $cb) = @_;	534	my ($registry, $event, $prio, $cb) = @_;
284		535
285	use sort 'stable';	536	use sort 'stable';
286		537
…		…
454	=cut	705	=cut
455		706
456	#############################################################################	707	#############################################################################
457	# object support	708	# object support
458		709
		710	sub reattach {
		711	# basically do the same as instantiate, without calling instantiate
		712	my ($obj) = @_;
		713
		714	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
		715
		716	my $registry = $obj->registry;
		717
		718	@$registry = ();
		719
		720	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} };
		721
		722	for my $name (keys %{ $obj->{_attachment} || {} }) {
		723	if (my $attach = $attachment{$name}) {
		724	for (@$attach) {
		725	my ($klass, @attach) = @$_;
		726	_attach $registry, $klass, @attach;
		727	}
		728	} else {
		729	warn "object uses attachment '$name' that is not available, postponing.\n";
		730	}
		731	}
		732	}
		733
459	cf::attachable->attach (	734	cf::attachable->attach (
460	prio => -1000000,	735	prio => -1000000,
461	on_instantiate => sub {	736	on_instantiate => sub {
462	my ($obj, $data) = @_;	737	my ($obj, $data) = @_;
463		738
…		…
467	my ($name, $args) = @$_;	742	my ($name, $args) = @$_;
468		743
469	$obj->attach ($name, %{$args || {} });	744	$obj->attach ($name, %{$args || {} });
470	}	745	}
471	},	746	},
472	on_reattach => sub {	747	on_reattach => \&reattach,
473	# basically do the same as instantiate, without calling instantiate
474	my ($obj) = @_;
475	my $registry = $obj->registry;
476
477	@$registry = ();
478
479	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} };
480
481	for my $name (keys %{ $obj->{_attachment} || {} }) {
482	if (my $attach = $attachment{$name}) {
483	for (@$attach) {
484	my ($klass, @attach) = @$_;
485	_attach $registry, $klass, @attach;
486	}
487	} else {
488	warn "object uses attachment '$name' that is not available, postponing.\n";
489	}
490	}
491	},
492	on_clone => sub {	748	on_clone => sub {
493	my ($src, $dst) = @_;	749	my ($src, $dst) = @_;
494		750
495	@{$dst->registry} = @{$src->registry};	751	@{$dst->registry} = @{$src->registry};
496		752
…		…
502	);	758	);
503		759
504	sub object_freezer_save {	760	sub object_freezer_save {
505	my ($filename, $rdata, $objs) = @_;	761	my ($filename, $rdata, $objs) = @_;
506		762
		763	sync_job {
507	if (length $$rdata) {	764	if (length $$rdata) {
508	warn sprintf "saving %s (%d,%d)\n",	765	warn sprintf "saving %s (%d,%d)\n",
509	$filename, length $$rdata, scalar @$objs;	766	$filename, length $$rdata, scalar @$objs;
510		767
511	if (open my $fh, ">:raw", "$filename~") {	768	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
512	chmod SAVE_MODE, $fh;
513	syswrite $fh, $$rdata;
514	close $fh;
515
516	if (@$objs && open my $fh, ">:raw", "$filename.pst~") {
517	chmod SAVE_MODE, $fh;	769	chmod SAVE_MODE, $fh;
518	syswrite $fh, Storable::nfreeze { version => 1, objs => $objs };	770	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		771	aio_fsync $fh if $cf::USE_FSYNC;
519	close $fh;	772	close $fh;
		773
		774	if (@$objs) {
		775	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
		776	chmod SAVE_MODE, $fh;
		777	my $data = Storable::nfreeze { version => 1, objs => $objs };
		778	aio_write $fh, 0, (length $data), $data, 0;
		779	aio_fsync $fh if $cf::USE_FSYNC;
		780	close $fh;
520	rename "$filename.pst~", "$filename.pst";	781	aio_rename "$filename.pst~", "$filename.pst";
		782	}
		783	} else {
		784	aio_unlink "$filename.pst";
		785	}
		786
		787	aio_rename "$filename~", $filename;
521	} else {	788	} else {
522	unlink "$filename.pst";	789	warn "FATAL: $filename~: $!\n";
523	}	790	}
524
525	rename "$filename~", $filename;
526	} else {	791	} else {
527	warn "FATAL: $filename~: $!\n";
528	}
529	} else {
530	unlink $filename;	792	aio_unlink $filename;
531	unlink "$filename.pst";	793	aio_unlink "$filename.pst";
		794	}
532	}	795	}
533	}	796	}
534		797
535	sub object_freezer_as_string {	798	sub object_freezer_as_string {
536	my ($rdata, $objs) = @_;	799	my ($rdata, $objs) = @_;
…		…
541	}	804	}
542		805
543	sub object_thawer_load {	806	sub object_thawer_load {
544	my ($filename) = @_;	807	my ($filename) = @_;
545		808
546	local $/;	809	my ($data, $av);
547		810
548	my $av;	811	(aio_load $filename, $data) >= 0
		812	or return;
549		813
550	#TODO: use sysread etc.	814	unless (aio_stat "$filename.pst") {
551	if (open my $data, "<:raw:perlio", $filename) {	815	(aio_load "$filename.pst", $av) >= 0
552	$data = <$data>;	816	or return;
553	if (open my $pst, "<:raw:perlio", "$filename.pst") {
554	$av = eval { (Storable::thaw <$pst>)->{objs} };	817	$av = eval { (Storable::thaw $av)->{objs} };
555	}	818	}
		819
		820	warn sprintf "loading %s (%d)\n",
		821	$filename, length $data, scalar @{$av || []};#d#
556	return ($data, $av);	822	return ($data, $av);
557	}
558
559	()
560	}	823	}
561		824
562	#############################################################################	825	#############################################################################
563	# command handling &c	826	# command handling &c
564		827
…		…
588	=cut	851	=cut
589		852
590	sub register_extcmd {	853	sub register_extcmd {
591	my ($name, $cb) = @_;	854	my ($name, $cb) = @_;
592		855
593	my $caller = caller;
594	#warn "registering extcmd '$name' to '$caller'";
595
596	$EXTCMD{$name} = [$cb, $caller];	856	$EXTCMD{$name} = $cb;
597	}	857	}
598		858
599	cf::player->attach (	859	cf::player->attach (
600	on_command => sub {	860	on_command => sub {
601	my ($pl, $name, $params) = @_;	861	my ($pl, $name, $params) = @_;
…		…
614		874
615	my $msg = eval { from_json $buf };	875	my $msg = eval { from_json $buf };
616		876
617	if (ref $msg) {	877	if (ref $msg) {
618	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	878	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
619	if (my %reply = $cb->[0]->($pl, $msg)) {	879	if (my %reply = $cb->($pl, $msg)) {
620	$pl->ext_reply ($msg->{msgid}, %reply);	880	$pl->ext_reply ($msg->{msgid}, %reply);
621	}	881	}
622	}	882	}
623	} else {	883	} else {
624	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	884	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
626		886
627	cf::override;	887	cf::override;
628	},	888	},
629	);	889	);
630		890
631	sub register {
632	my ($base, $pkg) = @_;
633
634	#TODO
635	}
636
637	sub load_extension {	891	sub load_extension {
638	my ($path) = @_;	892	my ($path) = @_;
639		893
640	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	894	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
641	my $base = $1;	895	my $base = $1;
642	my $pkg = $1;	896	my $pkg = $1;
643	$pkg =~ s/[^[:word:]]/_/g;	897	$pkg =~ s/[^[:word:]]/_/g;
644	$pkg = "ext::$pkg";	898	$pkg = "ext::$pkg";
645		899
646	warn "loading '$path' into '$pkg'\n";	900	warn "... loading '$path' into '$pkg'\n";
647		901
648	open my $fh, "<:utf8", $path	902	open my $fh, "<:utf8", $path
649	or die "$path: $!";	903	or die "$path: $!";
650		904
651	my $source =	905	my $source =
652	"package $pkg; use strict; use utf8;\n"	906	"package $pkg; use strict; use utf8;\n"
653	. "#line 1 \"$path\"\n{\n"	907	. "#line 1 \"$path\"\n{\n"
654	. (do { local $/; <$fh> })	908	. (do { local $/; <$fh> })
655	. "\n};\n1";	909	. "\n};\n1";
656		910
657	eval $source	911	unless (eval $source) {
658	or die $@ ? "$path: $@\n"	912	my $msg = $@ ? "$path: $@\n"
659	: "extension disabled.\n";	913	: "extension disabled.\n";
660		914	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
661	push @exts, $pkg;	915	warn $@;
662	$ext_pkg{$base} = $pkg;	916	warn "mandatory extension failed to load, exiting.\n";
663		917	exit 1;
664	# no strict 'refs';	918	}
665	# @{"$pkg\::ISA"} = ext::;	919	die $@;
666
667	register $base, $pkg;
668	}
669
670	sub unload_extension {
671	my ($pkg) = @_;
672
673	warn "removing extension $pkg\n";
674
675	# remove hooks
676	#TODO
677	# for my $idx (0 .. $#PLUGIN_EVENT) {
678	# delete $hook[$idx]{$pkg};
679	# }	920	}
680		921
681	# remove commands	922	push @EXTS, $pkg;
682	for my $name (keys %COMMAND) {
683	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
684
685	if (@cb) {
686	$COMMAND{$name} = \@cb;
687	} else {
688	delete $COMMAND{$name};
689	}
690	}
691
692	# remove extcmds
693	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
694	delete $EXTCMD{$name};
695	}
696
697	if (my $cb = $pkg->can ("unload")) {
698	eval {
699	$cb->($pkg);
700	1
701	} or warn "$pkg unloaded, but with errors: $@";
702	}
703
704	Symbol::delete_package $pkg;
705	}	923	}
706		924
707	sub load_extensions {	925	sub load_extensions {
708	for my $ext (<$LIBDIR/*.ext>) {	926	for my $ext (<$LIBDIR/*.ext>) {
709	next unless -r $ext;	927	next unless -r $ext;
…		…
713	} or warn "$ext not loaded: $@";	931	} or warn "$ext not loaded: $@";
714	}	932	}
715	}	933	}
716		934
717	#############################################################################	935	#############################################################################
718	# load/save/clean perl data associated with a map
719		936
720	*cf::mapsupport::on_clean = sub {	937	=head2 CORE EXTENSIONS
		938
		939	Functions and methods that extend core crossfire objects.
		940
		941	=cut
		942
		943	package cf::player;
		944
		945	use Coro::AIO;
		946
		947	=head3 cf::player
		948
		949	=over 4
		950
		951	=item cf::player::find $login
		952
		953	Returns the given player object, loading it if necessary (might block).
		954
		955	=cut
		956
		957	sub playerdir($) {
		958	cf::localdir
		959	. "/"
		960	. cf::playerdir
		961	. "/"
		962	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		963	}
		964
		965	sub path($) {
		966	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		967
		968	(playerdir $login) . "/$login.pl"
		969	}
		970
		971	sub find_active($) {
		972	$cf::PLAYER{$_[0]}
		973	and $cf::PLAYER{$_[0]}->active
		974	and $cf::PLAYER{$_[0]}
		975	}
		976
		977	sub exists($) {
		978	my ($login) = @_;
		979
		980	$cf::PLAYER{$login}
		981	or cf::sync_job { !aio_stat path $login }
		982	}
		983
		984	sub find($) {
		985	return $cf::PLAYER{$_[0]} || do {
		986	my $login = $_[0];
		987
		988	my $guard = cf::lock_acquire "user_find:$login";
		989
		990	$cf::PLAYER{$_[0]} || do {
		991	my $pl = load_pl path $login
		992	or return;
		993	$cf::PLAYER{$login} = $pl
		994	}
		995	}
		996	}
		997
		998	sub save($) {
		999	my ($pl) = @_;
		1000
		1001	return if $pl->{deny_save};
		1002
		1003	my $path = path $pl;
		1004	my $guard = cf::lock_acquire "user_save:$path";
		1005
		1006	return if $pl->{deny_save};
		1007
		1008	aio_mkdir playerdir $pl, 0770;
		1009	$pl->{last_save} = $cf::RUNTIME;
		1010
		1011	$pl->save_pl ($path);
		1012	Coro::cede;
		1013	}
		1014
		1015	sub new($) {
		1016	my ($login) = @_;
		1017
		1018	my $self = create;
		1019
		1020	$self->ob->name ($login);
		1021	$self->{deny_save} = 1;
		1022
		1023	$cf::PLAYER{$login} = $self;
		1024
		1025	$self
		1026	}
		1027
		1028	=item $pl->quit_character
		1029
		1030	Nukes the player without looking back. If logged in, the connection will
		1031	be destroyed. May block for a long time.
		1032
		1033	=cut
		1034
		1035	sub quit_character {
		1036	my ($pl) = @_;
		1037
		1038	my $name = $pl->ob->name;
		1039
		1040	$pl->{deny_save} = 1;
		1041	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1042
		1043	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1044	$pl->deactivate;
		1045	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1046	$pl->ns->destroy if $pl->ns;
		1047
		1048	my $path = playerdir $pl;
		1049	my $temp = "$path~$cf::RUNTIME~deleting~";
		1050	aio_rename $path, $temp;
		1051	delete $cf::PLAYER{$pl->ob->name};
		1052	$pl->destroy;
		1053
		1054	my $prefix = qr<^~\Q$name\E/>;
		1055
		1056	# nuke player maps
		1057	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1058
		1059	IO::AIO::aio_rmtree $temp;
		1060	}
		1061
		1062	=item $pl->kick
		1063
		1064	Kicks a player out of the game. This destroys the connection.
		1065
		1066	=cut
		1067
		1068	sub kick {
		1069	my ($pl, $kicker) = @_;
		1070
		1071	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1072	$pl->killer ("kicked");
		1073	$pl->ns->destroy;
		1074	}
		1075
		1076	=item cf::player::list_logins
		1077
		1078	Returns am arrayref of all valid playernames in the system, can take a
		1079	while and may block, so not sync_job-capable, ever.
		1080
		1081	=cut
		1082
		1083	sub list_logins {
		1084	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir
		1085	or return [];
		1086
		1087	my @logins;
		1088
		1089	for my $login (@$dirs) {
		1090	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1091	aio_read $fh, 0, 512, my $buf, 0 or next;
		1092	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1093
		1094	utf8::decode $login;
		1095	push @logins, $login;
		1096	}
		1097
		1098	\@logins
		1099	}
		1100
		1101	=item $player->maps
		1102
		1103	Returns an arrayref of map paths that are private for this
		1104	player. May block.
		1105
		1106	=cut
		1107
		1108	sub maps($) {
		1109	my ($pl) = @_;
		1110
		1111	$pl = ref $pl ? $pl->ob->name : $pl;
		1112
		1113	my $files = aio_readdir playerdir $pl
		1114	or return;
		1115
		1116	my @paths;
		1117
		1118	for (@$files) {
		1119	utf8::decode $_;
		1120	next if /\.(?:pl|pst)$/;
		1121	next unless /^$PATH_SEP/o;
		1122
		1123	push @paths, cf::map::normalise "~$pl/$_";
		1124	}
		1125
		1126	\@paths
		1127	}
		1128
		1129	=item $player->ext_reply ($msgid, %msg)
		1130
		1131	Sends an ext reply to the player.
		1132
		1133	=cut
		1134
		1135	sub ext_reply($$%) {
		1136	my ($self, $id, %msg) = @_;
		1137
		1138	$msg{msgid} = $id;
		1139
		1140	$self->send ("ext " . cf::to_json \%msg);
		1141	}
		1142
		1143	=item $player->ext_event ($type, %msg)
		1144
		1145	Sends an ext event to the client.
		1146
		1147	=cut
		1148
		1149	sub ext_event($$%) {
		1150	my ($self, $type, %msg) = @_;
		1151
		1152	$self->ns->ext_event ($type, %msg);
		1153	}
		1154
		1155	package cf;
		1156
		1157	=back
		1158
		1159
		1160	=head3 cf::map
		1161
		1162	=over 4
		1163
		1164	=cut
		1165
		1166	package cf::map;
		1167
		1168	use Fcntl;
		1169	use Coro::AIO;
		1170
		1171	use overload
		1172	'""' => \&as_string,
		1173	fallback => 1;
		1174
		1175	our $MAX_RESET = 3600;
		1176	our $DEFAULT_RESET = 3000;
		1177
		1178	sub generate_random_map {
		1179	my ($self, $rmp) = @_;
		1180	# mit "rum" bekleckern, nicht
		1181	$self->_create_random_map (
		1182	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
		1183	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
		1184	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
		1185	$rmp->{exit_on_final_map},
		1186	$rmp->{xsize}, $rmp->{ysize},
		1187	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
		1188	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
		1189	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
		1190	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
		1191	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
		1192	(cf::region::find $rmp->{region}), $rmp->{custom}
		1193	)
		1194	}
		1195
		1196	=item cf::map->register ($regex, $prio)
		1197
		1198	Register a handler for the map path matching the given regex at the
		1199	givne priority (higher is better, built-in handlers have priority 0, the
		1200	default).
		1201
		1202	=cut
		1203
		1204	sub register {
		1205	my (undef, $regex, $prio) = @_;
		1206	my $pkg = caller;
		1207
		1208	no strict;
		1209	push @{"$pkg\::ISA"}, __PACKAGE__;
		1210
		1211	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1212	}
		1213
		1214	# also paths starting with '/'
		1215	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1216
		1217	sub thawer_merge {
		1218	my ($self, $merge) = @_;
		1219
		1220	# we have to keep some variables in memory intact
		1221	local $self->{path};
		1222	local $self->{load_path};
		1223	local $self->{deny_save};
		1224	local $self->{deny_reset};
		1225
		1226	$self->SUPER::thawer_merge ($merge);
		1227	}
		1228
		1229	sub normalise {
		1230	my ($path, $base) = @_;
		1231
		1232	$path = "$path"; # make sure its a string
		1233
		1234	$path =~ s/\.map$//;
		1235
		1236	# map plan:
		1237	#
		1238	# /! non-realised random map exit (special hack!)
		1239	# {... are special paths that are not being touched
		1240	# ?xxx/... are special absolute paths
		1241	# ?random/... random maps
		1242	# /... normal maps
		1243	# ~user/... per-player map of a specific user
		1244
		1245	$path =~ s/$PATH_SEP/\//go;
		1246
		1247	# treat it as relative path if it starts with
		1248	# something that looks reasonable
		1249	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1250	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1251
		1252	$base =~ s{[^/]+/?$}{};
		1253	$path = "$base/$path";
		1254	}
		1255
		1256	for ($path) {
		1257	redo if s{//}{/};
		1258	redo if s{/\.?/}{/};
		1259	redo if s{/[^/]+/\.\./}{/};
		1260	}
		1261
		1262	$path
		1263	}
		1264
		1265	sub new_from_path {
		1266	my (undef, $path, $base) = @_;
		1267
		1268	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1269
		1270	$path = normalise $path, $base;
		1271
		1272	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1273	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1274	my $self = bless cf::map::new, $pkg;
		1275	$self->{path} = $path; $self->path ($path);
		1276	$self->init; # pass $1 etc.
		1277	return $self;
		1278	}
		1279	}
		1280
		1281	Carp::carp "unable to resolve path '$path' (base '$base').";
		1282	()
		1283	}
		1284
		1285	sub init {
		1286	my ($self) = @_;
		1287
		1288	$self
		1289	}
		1290
		1291	sub as_string {
		1292	my ($self) = @_;
		1293
		1294	"$self->{path}"
		1295	}
		1296
		1297	# the displayed name, this is a one way mapping
		1298	sub visible_name {
		1299	&as_string
		1300	}
		1301
		1302	# the original (read-only) location
		1303	sub load_path {
		1304	my ($self) = @_;
		1305
		1306	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}
		1307	}
		1308
		1309	# the temporary/swap location
		1310	sub save_path {
		1311	my ($self) = @_;
		1312
		1313	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1314	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path
		1315	}
		1316
		1317	# the unique path, undef == no special unique path
		1318	sub uniq_path {
		1319	my ($self) = @_;
		1320
		1321	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1322	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path
		1323	}
		1324
		1325	# and all this just because we cannot iterate over
		1326	# all maps in C++...
		1327	sub change_all_map_light {
		1328	my ($change) = @_;
		1329
		1330	$_->change_map_light ($change)
		1331	for grep $_->outdoor, values %cf::MAP;
		1332	}
		1333
		1334	sub unlink_save {
		1335	my ($self) = @_;
		1336
		1337	utf8::encode (my $save = $self->save_path);
		1338	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1339	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1340	}
		1341
		1342	sub load_header_from($) {
		1343	my ($self, $path) = @_;
		1344
		1345	utf8::encode $path;
		1346	#aio_open $path, O_RDONLY, 0
		1347	# or return;
		1348
		1349	$self->_load_header ($path)
		1350	or return;
		1351
		1352	$self->{load_path} = $path;
		1353
		1354	1
		1355	}
		1356
		1357	sub load_header_orig {
		1358	my ($self) = @_;
		1359
		1360	$self->load_header_from ($self->load_path)
		1361	}
		1362
		1363	sub load_header_temp {
		1364	my ($self) = @_;
		1365
		1366	$self->load_header_from ($self->save_path)
		1367	}
		1368
		1369	sub prepare_temp {
		1370	my ($self) = @_;
		1371
		1372	$self->last_access ((delete $self->{last_access})
		1373	|| $cf::RUNTIME); #d#
		1374	# safety
		1375	$self->{instantiate_time} = $cf::RUNTIME
		1376	if $self->{instantiate_time} > $cf::RUNTIME;
		1377	}
		1378
		1379	sub prepare_orig {
		1380	my ($self) = @_;
		1381
		1382	$self->{load_original} = 1;
		1383	$self->{instantiate_time} = $cf::RUNTIME;
		1384	$self->last_access ($cf::RUNTIME);
		1385	$self->instantiate;
		1386	}
		1387
		1388	sub load_header {
		1389	my ($self) = @_;
		1390
		1391	if ($self->load_header_temp) {
		1392	$self->prepare_temp;
		1393	} else {
		1394	$self->load_header_orig
		1395	or return;
		1396	$self->prepare_orig;
		1397	}
		1398
		1399	1
		1400	}
		1401
		1402	sub find;
		1403	sub find {
		1404	my ($path, $origin) = @_;
		1405
		1406	$path = normalise $path, $origin && $origin->path;
		1407
		1408	cf::lock_wait "map_find:$path";
		1409
		1410	$cf::MAP{$path} || do {
		1411	my $guard = cf::lock_acquire "map_find:$path";
		1412	my $map = new_from_path cf::map $path
		1413	or return;
		1414
		1415	$map->{last_save} = $cf::RUNTIME;
		1416
		1417	$map->load_header
		1418	or return;
		1419
		1420	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)
		1421	# doing this can freeze the server in a sync job, obviously
		1422	#$cf::WAIT_FOR_TICK->wait;
		1423	$map->reset;
		1424	undef $guard;
		1425	return find $path;
		1426	}
		1427
		1428	$cf::MAP{$path} = $map
		1429	}
		1430	}
		1431
		1432	sub pre_load { }
		1433	sub post_load { }
		1434
		1435	sub load {
		1436	my ($self) = @_;
		1437
		1438	local $self->{deny_reset} = 1; # loading can take a long time
		1439
		1440	my $path = $self->{path};
		1441	my $guard = cf::lock_acquire "map_load:$path";
		1442
		1443	return if $self->in_memory != cf::MAP_SWAPPED;
		1444
		1445	$self->in_memory (cf::MAP_LOADING);
		1446
		1447	$self->alloc;
		1448
		1449	$self->pre_load;
		1450
		1451	$self->_load_objects ($self->{load_path}, 1)
		1452	or return;
		1453
		1454	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1455	if delete $self->{load_original};
		1456
		1457	if (my $uniq = $self->uniq_path) {
		1458	utf8::encode $uniq;
		1459	if (aio_open $uniq, O_RDONLY, 0) {
		1460	$self->clear_unique_items;
		1461	$self->_load_objects ($uniq, 0);
		1462	}
		1463	}
		1464
		1465	Coro::cede;
		1466
		1467	# now do the right thing for maps
		1468	$self->link_multipart_objects;
		1469
		1470	unless ($self->{deny_activate}) {
		1471	$self->decay_objects;
		1472	$self->fix_auto_apply;
		1473	$self->update_buttons;
		1474	Coro::cede;
		1475	$self->set_darkness_map;
		1476	$self->difficulty ($self->estimate_difficulty)
		1477	unless $self->difficulty;
		1478	Coro::cede;
		1479	$self->activate;
		1480	}
		1481
		1482	$self->post_load;
		1483
		1484	$self->in_memory (cf::MAP_IN_MEMORY);
		1485	}
		1486
		1487	sub customise_for {
		1488	my ($self, $ob) = @_;
		1489
		1490	return find "~" . $ob->name . "/" . $self->{path}
		1491	if $self->per_player;
		1492
		1493	$self
		1494	}
		1495
		1496	# find and load all maps in the 3x3 area around a map
		1497	sub load_diag {
721	my ($map) = @_;	1498	my ($map) = @_;
722		1499
723	my $path = $map->tmpname;	1500	my @diag; # diagonal neighbours
724	defined $path or return;
725		1501
726	unlink "$path.pst";	1502	for (0 .. 3) {
727	};	1503	my $neigh = $map->tile_path ($_)
		1504	or next;
		1505	$neigh = find $neigh, $map
		1506	or next;
		1507	$neigh->load;
728		1508
729	cf::map->attach (prio => -10000, package => cf::mapsupport::);	1509	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1510	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1511	}
730		1512
731	#############################################################################	1513	for (@diag) {
732	# load/save perl data associated with player->ob objects	1514	my $neigh = find @$_
733		1515	or next;
734	sub all_objects(@) {	1516	$neigh->load;
735	@_, map all_objects ($_->inv), @_	1517	}
736	}	1518	}
737		1519
738	# TODO: compatibility cruft, remove when no longer needed	1520	sub find_sync {
739	cf::player->attach (	1521	my ($path, $origin) = @_;
740	on_load => sub {
741	my ($pl, $path) = @_;
742		1522
743	for my $o (all_objects $pl->ob) {	1523	cf::sync_job { find $path, $origin }
744	if (my $value = $o->get_ob_key_value ("_perl_data")) {	1524	}
745	$o->set_ob_key_value ("_perl_data");
746		1525
747	%$o = %{ Storable::thaw pack "H*", $value };	1526	sub do_load_sync {
		1527	my ($map) = @_;
		1528
		1529	cf::sync_job { $map->load };
		1530	}
		1531
		1532	our %MAP_PREFETCH;
		1533	our $MAP_PREFETCHER = undef;
		1534
		1535	sub find_async {
		1536	my ($path, $origin) = @_;
		1537
		1538	$path = normalise $path, $origin && $origin->{path};
		1539
		1540	if (my $map = $cf::MAP{$path}) {
		1541	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1542	}
		1543
		1544	undef $MAP_PREFETCH{$path};
		1545	$MAP_PREFETCHER ||= cf::async {
		1546	while (%MAP_PREFETCH) {
		1547	for my $path (keys %MAP_PREFETCH) {
		1548	my $map = find $path
		1549	or next;
		1550	$map->load;
		1551
		1552	delete $MAP_PREFETCH{$path};
748	}	1553	}
749	}	1554	}
		1555	undef $MAP_PREFETCHER;
		1556	};
		1557	$MAP_PREFETCHER->prio (6);
		1558
		1559	()
		1560	}
		1561
		1562	sub save {
		1563	my ($self) = @_;
		1564
		1565	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1566
		1567	$self->{last_save} = $cf::RUNTIME;
		1568
		1569	return unless $self->dirty;
		1570
		1571	my $save = $self->save_path; utf8::encode $save;
		1572	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1573
		1574	$self->{load_path} = $save;
		1575
		1576	return if $self->{deny_save};
		1577
		1578	local $self->{last_access} = $self->last_access;#d#
		1579
		1580	cf::async {
		1581	$_->contr->save for $self->players;
		1582	};
		1583
		1584	if ($uniq) {
		1585	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		1586	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		1587	} else {
		1588	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
750	},	1589	}
751	);	1590	}
752		1591
753	#############################################################################	1592	sub swap_out {
		1593	my ($self) = @_;
754		1594
755	=head2 CORE EXTENSIONS	1595	# save first because save cedes
		1596	$self->save;
756		1597
757	Functions and methods that extend core crossfire objects.	1598	my $lock = cf::lock_acquire "map_data:" . $self->path;
758		1599
759	=head3 cf::player	1600	return if $self->players;
		1601	return if $self->in_memory != cf::MAP_IN_MEMORY;
		1602	return if $self->{deny_save};
		1603
		1604	$self->clear;
		1605	$self->in_memory (cf::MAP_SWAPPED);
		1606	}
		1607
		1608	sub reset_at {
		1609	my ($self) = @_;
		1610
		1611	# TODO: safety, remove and allow resettable per-player maps
		1612	return 1e99 if $self->isa ("ext::map_per_player");#d#
		1613	return 1e99 if $self->{deny_reset};
		1614
		1615	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		1616	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
		1617
		1618	$time + $to
		1619	}
		1620
		1621	sub should_reset {
		1622	my ($self) = @_;
		1623
		1624	$self->reset_at <= $cf::RUNTIME
		1625	}
		1626
		1627	sub reset {
		1628	my ($self) = @_;
		1629
		1630	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1631
		1632	return if $self->players;
		1633	return if $self->isa ("ext::map_per_player");#d#
		1634
		1635	warn "resetting map ", $self->path;#d#
		1636
		1637	$self->in_memory (cf::MAP_SWAPPED);
		1638
		1639	# need to save uniques path
		1640	unless ($self->{deny_save}) {
		1641	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1642
		1643	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		1644	if $uniq;
		1645	}
		1646
		1647	delete $cf::MAP{$self->path};
		1648
		1649	$self->clear;
		1650
		1651	$_->clear_links_to ($self) for values %cf::MAP;
		1652
		1653	$self->unlink_save;
		1654	$self->destroy;
		1655	}
		1656
		1657	my $nuke_counter = "aaaa";
		1658
		1659	sub nuke {
		1660	my ($self) = @_;
		1661
		1662	delete $cf::MAP{$self->path};
		1663
		1664	$self->unlink_save;
		1665
		1666	bless $self, "cf::map";
		1667	delete $self->{deny_reset};
		1668	$self->{deny_save} = 1;
		1669	$self->reset_timeout (1);
		1670	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1671
		1672	$cf::MAP{$self->path} = $self;
		1673
		1674	$self->reset; # polite request, might not happen
		1675	}
		1676
		1677	=item cf::map::unique_maps
		1678
		1679	Returns an arrayref of paths of all shared maps that have
		1680	instantiated unique items. May block.
		1681
		1682	=cut
		1683
		1684	sub unique_maps() {
		1685	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir
		1686	or return;
		1687
		1688	my @paths;
		1689
		1690	for (@$files) {
		1691	utf8::decode $_;
		1692	next if /\.pst$/;
		1693	next unless /^$PATH_SEP/o;
		1694
		1695	push @paths, cf::map::normalise $_;
		1696	}
		1697
		1698	\@paths
		1699	}
		1700
		1701	package cf;
		1702
		1703	=back
		1704
		1705	=head3 cf::object
		1706
		1707	=cut
		1708
		1709	package cf::object;
760		1710
761	=over 4	1711	=over 4
762		1712
763	=item cf::player::exists $login	1713	=item $ob->inv_recursive
764		1714
765	Returns true when the given account exists.	1715	Returns the inventory of the object _and_ their inventories, recursively.
766		1716
767	=cut	1717	=cut
768		1718
769	sub cf::player::exists($) {	1719	sub inv_recursive_;
770	cf::player::find $_[0]	1720	sub inv_recursive_ {
771	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	1721	map { $_, inv_recursive_ $_->inv } @_
772	}	1722	}
773		1723
774	=item $player->ext_reply ($msgid, $msgtype, %msg)	1724	sub inv_recursive {
775		1725	inv_recursive_ inv $_[0]
776	Sends an ext reply to the player.
777
778	=cut
779
780	sub cf::player::ext_reply($$$%) {
781	my ($self, $id, %msg) = @_;
782
783	$msg{msgid} = $id;
784
785	$self->send ("ext " . to_json \%msg);
786	}	1726	}
		1727
		1728	package cf;
787		1729
788	=back	1730	=back
789		1731
790	=head3 cf::object::player	1732	=head3 cf::object::player
791		1733
…		…
829	(ref $cf::CFG{"may_$access"}	1771	(ref $cf::CFG{"may_$access"}
830	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	1772	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
831	: $cf::CFG{"may_$access"})	1773	: $cf::CFG{"may_$access"})
832	}	1774	}
833		1775
		1776	=item $player_object->enter_link
		1777
		1778	Freezes the player and moves him/her to a special map (C<{link}>).
		1779
		1780	The player should be reasonably safe there for short amounts of time. You
		1781	I<MUST> call C<leave_link> as soon as possible, though.
		1782
		1783	Will never block.
		1784
		1785	=item $player_object->leave_link ($map, $x, $y)
		1786
		1787	Moves the player out of the special C<{link}> map onto the specified
		1788	map. If the map is not valid (or omitted), the player will be moved back
		1789	to the location he/she was before the call to C<enter_link>, or, if that
		1790	fails, to the emergency map position.
		1791
		1792	Might block.
		1793
		1794	=cut
		1795
		1796	sub link_map {
		1797	unless ($LINK_MAP) {
		1798	$LINK_MAP = cf::map::find "{link}"
		1799	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		1800	$LINK_MAP->load;
		1801	}
		1802
		1803	$LINK_MAP
		1804	}
		1805
		1806	sub cf::object::player::enter_link {
		1807	my ($self) = @_;
		1808
		1809	$self->deactivate_recursive;
		1810
		1811	return if UNIVERSAL::isa $self->map, "ext::map_link";
		1812
		1813	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
		1814	if $self->map;
		1815
		1816	$self->enter_map ($LINK_MAP || link_map, 10, 10);
		1817	}
		1818
		1819	sub cf::object::player::leave_link {
		1820	my ($self, $map, $x, $y) = @_;
		1821
		1822	my $link_pos = delete $self->{_link_pos};
		1823
		1824	unless ($map) {
		1825	# restore original map position
		1826	($map, $x, $y) = @{ $link_pos || [] };
		1827	$map = cf::map::find $map;
		1828
		1829	unless ($map) {
		1830	($map, $x, $y) = @$EMERGENCY_POSITION;
		1831	$map = cf::map::find $map
		1832	or die "FATAL: cannot load emergency map\n";
		1833	}
		1834	}
		1835
		1836	($x, $y) = (-1, -1)
		1837	unless (defined $x) && (defined $y);
		1838
		1839	# use -1 or undef as default coordinates, not 0, 0
		1840	($x, $y) = ($map->enter_x, $map->enter_y)
		1841	if $x <=0 && $y <= 0;
		1842
		1843	$map->load;
		1844	$map->load_diag;
		1845
		1846	return unless $self->contr->active;
		1847	$self->activate_recursive;
		1848
		1849	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		1850	$self->enter_map ($map, $x, $y);
		1851	}
		1852
		1853	cf::player->attach (
		1854	on_logout => sub {
		1855	my ($pl) = @_;
		1856
		1857	# abort map switching before logout
		1858	if ($pl->ob->{_link_pos}) {
		1859	cf::sync_job {
		1860	$pl->ob->leave_link
		1861	};
		1862	}
		1863	},
		1864	on_login => sub {
		1865	my ($pl) = @_;
		1866
		1867	# try to abort aborted map switching on player login :)
		1868	# should happen only on crashes
		1869	if ($pl->ob->{_link_pos}) {
		1870	$pl->ob->enter_link;
		1871	(async {
		1872	$pl->ob->reply (undef,
		1873	"There was an internal problem at your last logout, "
		1874	. "the server will try to bring you to your intended destination in a second.",
		1875	cf::NDI_RED);
		1876	# we need this sleep as the login has a concurrent enter_exit running
		1877	# and this sleep increases chances of the player not ending up in scorn
		1878	Coro::Timer::sleep 1;
		1879	$pl->ob->leave_link;
		1880	})->prio (2);
		1881	}
		1882	},
		1883	);
		1884
		1885	=item $player_object->goto ($path, $x, $y)
		1886
		1887	=cut
		1888
		1889	sub cf::object::player::goto {
		1890	my ($self, $path, $x, $y) = @_;
		1891
		1892	$self->enter_link;
		1893
		1894	(async {
		1895	my $map = eval {
		1896	my $map = cf::map::find $path;
		1897	$map = $map->customise_for ($self) if $map;
		1898	$map
		1899	} or
		1900	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		1901
		1902	$self->leave_link ($map, $x, $y);
		1903	})->prio (1);
		1904	}
		1905
		1906	=item $player_object->enter_exit ($exit_object)
		1907
		1908	=cut
		1909
		1910	sub parse_random_map_params {
		1911	my ($spec) = @_;
		1912
		1913	my $rmp = { # defaults
		1914	xsize => (cf::rndm 15, 40),
		1915	ysize => (cf::rndm 15, 40),
		1916	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		1917	#layout => string,
		1918	};
		1919
		1920	for (split /\n/, $spec) {
		1921	my ($k, $v) = split /\s+/, $_, 2;
		1922
		1923	$rmp->{lc $k} = $v if (length $k) && (length $v);
		1924	}
		1925
		1926	$rmp
		1927	}
		1928
		1929	sub prepare_random_map {
		1930	my ($exit) = @_;
		1931
		1932	my $guard = cf::lock_acquire "exit_prepare:$exit";
		1933
		1934	# all this does is basically replace the /! path by
		1935	# a new random map path (?random/...) with a seed
		1936	# that depends on the exit object
		1937
		1938	my $rmp = parse_random_map_params $exit->msg;
		1939
		1940	if ($exit->map) {
		1941	$rmp->{region} = $exit->region->name;
		1942	$rmp->{origin_map} = $exit->map->path;
		1943	$rmp->{origin_x} = $exit->x;
		1944	$rmp->{origin_y} = $exit->y;
		1945	}
		1946
		1947	$rmp->{random_seed} ||= $exit->random_seed;
		1948
		1949	my $data = cf::to_json $rmp;
		1950	my $md5 = Digest::MD5::md5_hex $data;
		1951	my $meta = "$cf::RANDOM_MAPS/$md5.meta";
		1952
		1953	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
		1954	aio_write $fh, 0, (length $data), $data, 0;
		1955	undef $fh;
		1956	aio_rename "$meta~", $meta;
		1957
		1958	$exit->slaying ("?random/$md5");
		1959	$exit->msg (undef);
		1960	}
		1961	}
		1962
		1963	sub cf::object::player::enter_exit {
		1964	my ($self, $exit) = @_;
		1965
		1966	return unless $self->type == cf::PLAYER;
		1967
		1968	if ($exit->slaying eq "/!") {
		1969	#TODO: this should de-fi-ni-te-ly not be a sync-job
		1970	cf::sync_job { prepare_random_map $exit };
		1971	}
		1972
		1973	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		1974	my $hp = $exit->stats->hp;
		1975	my $sp = $exit->stats->sp;
		1976
		1977	$self->enter_link;
		1978
		1979	(async {
		1980	$self->deactivate_recursive; # just to be sure
		1981	unless (eval {
		1982	$self->goto ($slaying, $hp, $sp);
		1983
		1984	1;
		1985	}) {
		1986	$self->message ("Something went wrong deep within the crossfire server. "
		1987	. "I'll try to bring you back to the map you were before. "
		1988	. "Please report this to the dungeon master!",
		1989	cf::NDI_UNIQUE | cf::NDI_RED);
		1990
		1991	warn "ERROR in enter_exit: $@";
		1992	$self->leave_link;
		1993	}
		1994	})->prio (1);
		1995	}
		1996
834	=head3 cf::client	1997	=head3 cf::client
835		1998
836	=over 4	1999	=over 4
837		2000
838	=item $client->send_drawinfo ($text, $flags)	2001	=item $client->send_drawinfo ($text, $flags)
…		…
844		2007
845	sub cf::client::send_drawinfo {	2008	sub cf::client::send_drawinfo {
846	my ($self, $text, $flags) = @_;	2009	my ($self, $text, $flags) = @_;
847		2010
848	utf8::encode $text;	2011	utf8::encode $text;
849	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2012	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
850	}	2013	}
851		2014
		2015	=item $client->ext_event ($type, %msg)
		2016
		2017	Sends an exti event to the client.
		2018
		2019	=cut
		2020
		2021	sub cf::client::ext_event($$%) {
		2022	my ($self, $type, %msg) = @_;
		2023
		2024	$msg{msgtype} = "event_$type";
		2025	$self->send_packet ("ext " . cf::to_json \%msg);
		2026	}
852		2027
853	=item $success = $client->query ($flags, "text", \&cb)	2028	=item $success = $client->query ($flags, "text", \&cb)
854		2029
855	Queues a query to the client, calling the given callback with	2030	Queues a query to the client, calling the given callback with
856	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2031	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
…		…
881	on_reply => sub {	2056	on_reply => sub {
882	my ($ns, $msg) = @_;	2057	my ($ns, $msg) = @_;
883		2058
884	# this weird shuffling is so that direct followup queries	2059	# this weird shuffling is so that direct followup queries
885	# get handled first	2060	# get handled first
886	my $queue = delete $ns->{query_queue};	2061	my $queue = delete $ns->{query_queue}
		2062	or return; # be conservative, not sure how that can happen, but we saw a crash here
887		2063
888	(shift @$queue)->[1]->($msg);	2064	(shift @$queue)->[1]->($msg);
		2065	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
889		2066
890	push @{ $ns->{query_queue} }, @$queue;	2067	push @{ $ns->{query_queue} }, @$queue;
891		2068
892	if (@{ $ns->{query_queue} } == @$queue) {	2069	if (@{ $ns->{query_queue} } == @$queue) {
893	if (@$queue) {	2070	if (@$queue) {
…		…
897	}	2074	}
898	}	2075	}
899	},	2076	},
900	);	2077	);
901		2078
902	=item $client->coro (\&cb)	2079	=item $client->async (\&cb)
903		2080
904	Create a new coroutine, running the specified callback. The coroutine will	2081	Create a new coroutine, running the specified callback. The coroutine will
905	be automatically cancelled when the client gets destroyed (e.g. on logout,	2082	be automatically cancelled when the client gets destroyed (e.g. on logout,
906	or loss of connection).	2083	or loss of connection).
907		2084
908	=cut	2085	=cut
909		2086
910	sub cf::client::coro {	2087	sub cf::client::async {
911	my ($self, $cb) = @_;	2088	my ($self, $cb) = @_;
912		2089
913	my $coro; $coro = async {	2090	my $coro = &Coro::async ($cb);
914	eval {	2091
915	$cb->();	2092	$coro->on_destroy (sub {
916	};
917	warn $@ if $@;
918	delete $self->{_coro}{$coro+0};	2093	delete $self->{_coro}{$coro+0};
919	};	2094	});
920		2095
921	$self->{_coro}{$coro+0} = $coro;	2096	$self->{_coro}{$coro+0} = $coro;
		2097
		2098	$coro
922	}	2099	}
923		2100
924	cf::client->attach (	2101	cf::client->attach (
925	on_destroy => sub {	2102	on_destroy => sub {
926	my ($ns) = @_;	2103	my ($ns) = @_;
…		…
951		2128
952	# here we export the classes and methods available to script code	2129	# here we export the classes and methods available to script code
953		2130
954	=pod	2131	=pod
955		2132
956	The following fucntions and emthods are available within a safe environment:	2133	The following functions and methods are available within a safe environment:
957		2134
958	cf::object contr pay_amount pay_player map	2135	cf::object contr pay_amount pay_player map
959	cf::object::player player	2136	cf::object::player player
960	cf::player peaceful	2137	cf::player peaceful
961	cf::map trigger	2138	cf::map trigger
…		…
1054	The parameter C<$family> should best start with the name of the extension	2231	The parameter C<$family> should best start with the name of the extension
1055	using it, it should be unique.	2232	using it, it should be unique.
1056		2233
1057	=over 4	2234	=over 4
1058		2235
1059	=item $hashref = cf::db_get $family
1060
1061	Return a hashref for use by the extension C<$family>, which can be
1062	modified. After modifications, you have to call C<cf::db_dirty> or
1063	C<cf::db_sync>.
1064
1065	=item $value = cf::db_get $family => $key	2236	=item $value = cf::db_get $family => $key
1066		2237
1067	Returns a single value from the database	2238	Returns a single value from the database.
1068
1069	=item cf::db_put $family => $hashref
1070
1071	Stores the given family hashref into the database. Updates are delayed, if
1072	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1073		2239
1074	=item cf::db_put $family => $key => $value	2240	=item cf::db_put $family => $key => $value
1075		2241
1076	Stores the given C<$value> in the family hash. Updates are delayed, if you	2242	Stores the given C<$value> in the family.
1077	want the data to be synced to disk immediately, use C<cf::db_sync>.
1078
1079	=item cf::db_dirty
1080
1081	Marks the database as dirty, to be updated at a later time.
1082
1083	=item cf::db_sync
1084
1085	Immediately write the database to disk I<if it is dirty>.
1086		2243
1087	=cut	2244	=cut
1088		2245
1089	our $DB;	2246	our $DB;
1090		2247
1091	{	2248	sub db_init {
		2249	unless ($DB) {
		2250	$DB = BDB::db_create $DB_ENV;
		2251
		2252	cf::sync_job {
		2253	eval {
		2254	$DB->set_flags (BDB::CHKSUM);
		2255
		2256	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		2257	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		2258	cf::cleanup "db_open(db): $!" if $!;
		2259	};
		2260	cf::cleanup "db_open(db): $@" if $@;
		2261	};
		2262
1092	my $path = cf::localdir . "/database.pst";	2263	my $path = cf::localdir . "/database.pst";
		2264	if (stat $path) {
		2265	cf::sync_job {
		2266	my $pst = Storable::retrieve $path;
1093		2267
1094	sub db_load() {	2268	cf::db_put (board => data => $pst->{board});
1095	warn "loading database $path\n";#d# remove later	2269	cf::db_put (guildrules => data => $pst->{guildrules});
1096	$DB = stat $path ? Storable::retrieve $path : { };	2270	cf::db_put (rent => balance => $pst->{rent}{balance});
1097	}	2271	BDB::db_env_txn_checkpoint $DB_ENV;
1098		2272
1099	my $pid;	2273	unlink $path;
1100
1101	sub db_save() {
1102	warn "saving database $path\n";#d# remove later
1103	waitpid $pid, 0 if $pid;
1104	if (0 == ($pid = fork)) {
1105	$DB->{_meta}{version} = 1;
1106	Storable::nstore $DB, "$path~";
1107	rename "$path~", $path;
1108	cf::_exit 0 if defined $pid;
1109	}	2274	};
1110	}	2275	}
1111
1112	my $dirty;
1113
1114	sub db_sync() {
1115	db_save if $dirty;
1116	undef $dirty;
1117	}
1118
1119	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1120	db_sync;
1121	});	2276	}
		2277	}
1122		2278
1123	sub db_dirty() {
1124	$dirty = 1;
1125	$idle->start;
1126	}
1127
1128	sub db_get($;$) {	2279	sub db_get($$) {
1129	@_ >= 2	2280	my $key = "$_[0]/$_[1]";
1130	? $DB->{$_[0]}{$_[1]}
1131	: ($DB->{$_[0]} ||= { })
1132	}
1133		2281
		2282	cf::sync_job {
		2283	BDB::db_get $DB, undef, $key, my $data;
		2284
		2285	$! ? ()
		2286	: Compress::LZF::sthaw $data
		2287	}
		2288	}
		2289
1134	sub db_put($$;$) {	2290	sub db_put($$$) {
1135	if (@_ >= 3) {	2291	BDB::dbreq_pri 4;
1136	$DB->{$_[0]}{$_[1]} = $_[2];	2292	BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
		2293	}
		2294
		2295	#############################################################################
		2296	# the server's init and main functions
		2297
		2298	sub load_facedata {
		2299	my $path = sprintf "%s/facedata", cf::datadir;
		2300
		2301	warn "loading facedata from $path\n";
		2302
		2303	my $faces;
		2304	0 < aio_load $path, $faces
		2305	or die "$path: $!";
		2306
		2307	Coro::cede;
		2308	$faces = Storable::thaw $faces;
		2309	Coro::cede;
		2310
		2311	my $meta = delete $faces->{""};
		2312	$meta->{version} == 1
		2313	or cf::cleanup "$path: version mismatch, cannot proceed.";
		2314
		2315	while (my ($face, $info) = each %$faces) {
		2316	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		2317	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
		2318	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2319	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
		2320	Coro::cede;
		2321	}
		2322
		2323	while (my ($face, $info) = each %$faces) {
		2324	next unless $info->{smooth};
		2325	my $idx = cf::face::find $face
		2326	or next;
		2327	if (my $smooth = cf::face::find $info->{smooth}) {
		2328	cf::face::set_smooth $idx, $smooth;
1137	} else {	2329	} else {
1138	$DB->{$_[0]} = $_[1];	2330	warn "smooth face '$info->{smooth}' not found for face '$face'";
1139	}
1140	db_dirty;
1141	}
1142
1143	cf::global->attach (
1144	prio => 10000,
1145	on_cleanup => sub {
1146	db_sync;
1147	},	2331	}
1148	);	2332	Coro::cede;
1149	}	2333	}
1150		2334
1151	#############################################################################	2335	1
1152	# the server's main()	2336	}
		2337
		2338	sub reload_resources {
		2339	load_resource_file sprintf "%s/%s/regions", cf::datadir, cf::mapdir
		2340	or die "unable to load regions file\n";#d#
		2341	load_facedata
		2342	or die "unable to load facedata\n";#d#
		2343	}
		2344
		2345	sub init {
		2346	reload_resources;
		2347	}
1153		2348
1154	sub cfg_load {	2349	sub cfg_load {
1155	open my $fh, "<:utf8", cf::confdir . "/config"	2350	open my $fh, "<:utf8", cf::confdir . "/config"
1156	or return;	2351	or return;
1157		2352
1158	local $/;	2353	local $/;
1159	*CFG = YAML::Syck::Load <$fh>;	2354	*CFG = YAML::Syck::Load <$fh>;
		2355
		2356	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		2357
		2358	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2359	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2360
		2361	if (exists $CFG{mlockall}) {
		2362	eval {
		2363	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2364	and die "WARNING: m(un)lockall failed: $!\n";
		2365	};
		2366	warn $@ if $@;
		2367	}
1160	}	2368	}
1161		2369
1162	sub main {	2370	sub main {
		2371	# we must not ever block the main coroutine
		2372	local $Coro::idle = sub {
		2373	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		2374	(async {
		2375	Event::one_event;
		2376	})->prio (Coro::PRIO_MAX);
		2377	};
		2378
1163	cfg_load;	2379	cfg_load;
1164	db_load;	2380	db_init;
1165	load_extensions;	2381	load_extensions;
		2382
		2383	$TICK_WATCHER->start;
1166	Event::loop;	2384	Event::loop;
1167	}	2385	}
1168		2386
1169	#############################################################################	2387	#############################################################################
1170	# initialisation	2388	# initialisation and cleanup
1171		2389
		2390	# install some emergency cleanup handlers
		2391	BEGIN {
		2392	for my $signal (qw(INT HUP TERM)) {
		2393	Event->signal (
		2394	reentrant => 0,
		2395	data => WF_AUTOCANCEL,
		2396	signal => $signal,
		2397	prio => 0,
		2398	cb => sub {
		2399	cf::cleanup "SIG$signal";
		2400	},
		2401	);
		2402	}
		2403	}
		2404
		2405	sub emergency_save() {
		2406	my $freeze_guard = cf::freeze_mainloop;
		2407
		2408	warn "enter emergency perl save\n";
		2409
		2410	cf::sync_job {
		2411	# use a peculiar iteration method to avoid tripping on perl
		2412	# refcount bugs in for. also avoids problems with players
		2413	# and maps saved/destroyed asynchronously.
		2414	warn "begin emergency player save\n";
		2415	for my $login (keys %cf::PLAYER) {
		2416	my $pl = $cf::PLAYER{$login} or next;
		2417	$pl->valid or next;
		2418	$pl->save;
		2419	}
		2420	warn "end emergency player save\n";
		2421
		2422	warn "begin emergency map save\n";
		2423	for my $path (keys %cf::MAP) {
		2424	my $map = $cf::MAP{$path} or next;
		2425	$map->valid or next;
		2426	$map->save;
		2427	}
		2428	warn "end emergency map save\n";
		2429
		2430	warn "begin emergency database checkpoint\n";
		2431	BDB::db_env_txn_checkpoint $DB_ENV;
		2432	warn "end emergency database checkpoint\n";
		2433	};
		2434
		2435	warn "leave emergency perl save\n";
		2436	}
		2437
		2438	sub post_cleanup {
		2439	my ($make_core) = @_;
		2440
		2441	warn Carp::longmess "post_cleanup backtrace"
		2442	if $make_core;
		2443	}
		2444
1172	sub _perl_reload(&) {	2445	sub reload() {
1173	my ($msg) = @_;	2446	# can/must only be called in main
		2447	if ($Coro::current != $Coro::main) {
		2448	warn "can only reload from main coroutine";
		2449	return;
		2450	}
1174		2451
1175	$msg->("reloading...");	2452	warn "reloading...";
1176		2453
1177	eval {	2454	warn "entering sync_job";
1178	# cancel all watchers	2455
		2456	cf::sync_job {
		2457	cf::write_runtime; # external watchdog should not bark
		2458	cf::emergency_save;
		2459	cf::write_runtime; # external watchdog should not bark
		2460
		2461	warn "syncing database to disk";
		2462	BDB::db_env_txn_checkpoint $DB_ENV;
		2463
		2464	# if anything goes wrong in here, we should simply crash as we already saved
		2465
		2466	warn "cancelling all WF_AUTOCANCEL watchers";
1179	for (Event::all_watchers) {	2467	for (Event::all_watchers) {
1180	$_->cancel if $_->data & WF_AUTOCANCEL;	2468	$_->cancel if $_->data & WF_AUTOCANCEL;
1181	}	2469	}
1182		2470
1183	# unload all extensions	2471	warn "flushing outstanding aio requests";
1184	for (@exts) {	2472	for (;;) {
1185	$msg->("unloading <$_>");	2473	BDB::flush;
1186	unload_extension $_;	2474	IO::AIO::flush;
		2475	Coro::cede;
		2476	last unless IO::AIO::nreqs || BDB::nreqs;
		2477	warn "iterate...";
		2478	}
		2479
		2480	++$RELOAD;
		2481
		2482	warn "cancelling all extension coros";
		2483	$_->cancel for values %EXT_CORO;
		2484	%EXT_CORO = ();
		2485
		2486	warn "removing commands";
		2487	%COMMAND = ();
		2488
		2489	warn "removing ext commands";
		2490	%EXTCMD = ();
		2491
		2492	warn "unloading/nuking all extensions";
		2493	for my $pkg (@EXTS) {
		2494	warn "... unloading $pkg";
		2495
		2496	if (my $cb = $pkg->can ("unload")) {
		2497	eval {
		2498	$cb->($pkg);
		2499	1
		2500	} or warn "$pkg unloaded, but with errors: $@";
1187	}	2501	}
1188		2502
		2503	warn "... nuking $pkg";
		2504	Symbol::delete_package $pkg;
		2505	}
		2506
1189	# unload all modules loaded from $LIBDIR	2507	warn "unloading all perl modules loaded from $LIBDIR";
1190	while (my ($k, $v) = each %INC) {	2508	while (my ($k, $v) = each %INC) {
1191	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2509	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1192		2510
1193	$msg->("removing <$k>");	2511	warn "... unloading $k";
1194	delete $INC{$k};	2512	delete $INC{$k};
1195		2513
1196	$k =~ s/\.pm$//;	2514	$k =~ s/\.pm$//;
1197	$k =~ s/\//::/g;	2515	$k =~ s/\//::/g;
1198		2516
…		…
1201	}	2519	}
1202		2520
1203	Symbol::delete_package $k;	2521	Symbol::delete_package $k;
1204	}	2522	}
1205		2523
1206	# sync database to disk
1207	cf::db_sync;
1208
1209	# get rid of safe::, as good as possible	2524	warn "getting rid of safe::, as good as possible";
1210	Symbol::delete_package "safe::$_"	2525	Symbol::delete_package "safe::$_"
1211	for qw(cf::object cf::object::player cf::player cf::map cf::party cf::region);	2526	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1212		2527
1213	# remove register_script_function callbacks
1214	# TODO
1215
1216	# unload cf.pm "a bit"	2528	warn "unloading cf.pm \"a bit\"";
1217	delete $INC{"cf.pm"};	2529	delete $INC{"cf.pm"};
1218		2530
1219	# don't, removes xs symbols, too,	2531	# don't, removes xs symbols, too,
1220	# and global variables created in xs	2532	# and global variables created in xs
1221	#Symbol::delete_package __PACKAGE__;	2533	#Symbol::delete_package __PACKAGE__;
1222		2534
1223	# reload cf.pm	2535	warn "unload completed, starting to reload now";
		2536
1224	$msg->("reloading cf.pm");	2537	warn "reloading cf.pm";
1225	require cf;	2538	require cf;
1226	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2539	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1227		2540
1228
1229	# load config and database again	2541	warn "loading config and database again";
1230	cf::cfg_load;	2542	cf::cfg_load;
1231	cf::db_load;
1232		2543
1233	# load extensions	2544	warn "loading extensions";
1234	$msg->("load extensions");
1235	cf::load_extensions;	2545	cf::load_extensions;
1236		2546
1237	# reattach attachments to objects	2547	warn "reattaching attachments to objects/players";
1238	$msg->("reattach");	2548	_global_reattach; # objects, sockets
1239	_global_reattach;	2549	warn "reattaching attachments to maps";
		2550	reattach $_ for values %MAP;
		2551	warn "reattaching attachments to players";
		2552	reattach $_ for values %PLAYER;
		2553
		2554	warn "loading reloadable resources";
		2555	reload_resources;
		2556
		2557	warn "leaving sync_job";
		2558
		2559	1
		2560	} or do {
		2561	warn $@;
		2562	warn "error while reloading, exiting.";
		2563	exit 1;
1240	};	2564	};
1241	$msg->($@) if $@;
1242		2565
1243	$msg->("reloaded");	2566	warn "reloaded";
1244	};	2567	};
1245		2568
1246	sub perl_reload() {	2569	our $RELOAD_WATCHER; # used only during reload
1247	_perl_reload {
1248	warn $_[0];
1249	print "$_[0]\n";
1250	};
1251	}
1252		2570
1253	register "<global>", __PACKAGE__;
1254
1255	register_command "perl-reload" => sub {	2571	register_command "reload" => sub {
1256	my ($who, $arg) = @_;	2572	my ($who, $arg) = @_;
1257		2573
1258	if ($who->flag (FLAG_WIZ)) {	2574	if ($who->flag (FLAG_WIZ)) {
1259	_perl_reload {	2575	$who->message ("reloading server.");
1260	warn $_[0];	2576
1261	$who->message ($_[0]);	2577	# doing reload synchronously and two reloads happen back-to-back,
		2578	# coro crashes during coro_state_free->destroy here.
		2579
		2580	$RELOAD_WATCHER ||= Event->timer (
		2581	reentrant => 0,
		2582	after => 0,
		2583	data => WF_AUTOCANCEL,
		2584	cb => sub {
		2585	reload;
		2586	undef $RELOAD_WATCHER;
		2587	},
1262	};	2588	);
1263	}	2589	}
1264	};	2590	};
1265		2591
1266	unshift @INC, $LIBDIR;	2592	unshift @INC, $LIBDIR;
1267		2593
		2594	my $bug_warning = 0;
		2595
1268	$TICK_WATCHER = Event->timer (	2596	$TICK_WATCHER = Event->timer (
		2597	reentrant => 0,
		2598	parked => 1,
1269	prio => 0,	2599	prio => 0,
1270	at => $NEXT_TICK || 1,	2600	at => $NEXT_TICK || $TICK,
1271	data => WF_AUTOCANCEL,	2601	data => WF_AUTOCANCEL,
1272	cb => sub {	2602	cb => sub {
		2603	if ($Coro::current != $Coro::main) {
		2604	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2605	unless ++$bug_warning > 10;
		2606	return;
		2607	}
		2608
		2609	$NOW = Event::time;
		2610
1273	cf::server_tick; # one server iteration	2611	cf::server_tick; # one server iteration
1274		2612	$RUNTIME += $TICK;
1275	my $NOW = Event::time;
1276	$NEXT_TICK += $TICK;	2613	$NEXT_TICK += $TICK;
1277		2614
		2615	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		2616	$NEXT_RUNTIME_WRITE = $NOW + 10;
		2617	Coro::async_pool {
		2618	write_runtime
		2619	or warn "ERROR: unable to write runtime file: $!";
		2620	};
		2621	}
		2622
		2623	$WAIT_FOR_TICK->broadcast;
		2624	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
		2625
		2626	# my $AFTER = Event::time;
		2627	# warn $AFTER - $NOW;#d#
		2628
1278	# if we are delayed by four ticks or more, skip them all	2629	# if we are delayed by four ticks or more, skip them all
1279	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;	2630	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
1280		2631
1281	$TICK_WATCHER->at ($NEXT_TICK);	2632	$TICK_WATCHER->at ($NEXT_TICK);
1282	$TICK_WATCHER->start;	2633	$TICK_WATCHER->start;
1283	},	2634	},
1284	);	2635	);
1285		2636
		2637	{
		2638	BDB::max_poll_time $TICK * 0.1;
		2639	$BDB_POLL_WATCHER = Event->io (
		2640	reentrant => 0,
		2641	fd => BDB::poll_fileno,
		2642	poll => 'r',
		2643	prio => 0,
		2644	data => WF_AUTOCANCEL,
		2645	cb => \&BDB::poll_cb,
		2646	);
		2647	BDB::min_parallel 8;
		2648
		2649	BDB::set_sync_prepare {
		2650	my $status;
		2651	my $current = $Coro::current;
		2652	(
		2653	sub {
		2654	$status = $!;
		2655	$current->ready; undef $current;
		2656	},
		2657	sub {
		2658	Coro::schedule while defined $current;
		2659	$! = $status;
		2660	},
		2661	)
		2662	};
		2663
		2664	unless ($DB_ENV) {
		2665	$DB_ENV = BDB::db_env_create;
		2666
		2667	cf::sync_job {
		2668	eval {
		2669	BDB::db_env_open
		2670	$DB_ENV,
		2671	$BDB_ENV_DIR,
		2672	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		2673	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		2674	0666;
		2675
		2676	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;
		2677
		2678	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		2679	$DB_ENV->set_lk_detect;
		2680	};
		2681
		2682	cf::cleanup "db_env_open(db): $@" if $@;
		2683	};
		2684	}
		2685	}
		2686
		2687	{
		2688	IO::AIO::min_parallel 8;
		2689
		2690	undef $Coro::AIO::WATCHER;
1286	IO::AIO::max_poll_time $TICK * 0.2;	2691	IO::AIO::max_poll_time $TICK * 0.1;
1287		2692	$AIO_POLL_WATCHER = Event->io (
1288	Event->io (fd => IO::AIO::poll_fileno,	2693	reentrant => 0,
1289	poll => 'r',
1290	prio => 5,
1291	data => WF_AUTOCANCEL,	2694	data => WF_AUTOCANCEL,
		2695	fd => IO::AIO::poll_fileno,
		2696	poll => 'r',
		2697	prio => 6,
1292	cb => \&IO::AIO::poll_cb);	2698	cb => \&IO::AIO::poll_cb,
		2699	);
		2700	}
		2701
		2702	END { cf::emergency_save }
1293		2703
1294	1	2704	1
1295		2705

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