ViewVC Help

View File | Revision Log | Show Annotations | Download File

/cvs/deliantra/server/lib/cf.pm

Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.45 by root, Sat Aug 26 23:36:32 2006 UTC vs.
Revision 1.208 by root, Mon Feb 12 00:27:20 2007 UTC

1	package cf;	1	package cf;
		2
		3	use utf8;
		4	use strict;
2		5
3	use Symbol;	6	use Symbol;
4	use List::Util;	7	use List::Util;
5	use Storable;	8	use Storable;
6	use Opcode;	9	use Opcode;
7	use Safe;	10	use Safe;
8	use Safe::Hole;	11	use Safe::Hole;
9		12
		13	use Coro 3.5 ();
		14	use Coro::Event;
		15	use Coro::Timer;
		16	use Coro::Signal;
		17	use Coro::Semaphore;
		18	use Coro::AIO;
		19
		20	use BDB ();
		21	use Data::Dumper;
		22	use Digest::MD5;
		23	use Fcntl;
		24	use IO::AIO 2.32 ();
		25	use YAML::Syck ();
10	use Time::HiRes;	26	use Time::HiRes;
11	use Event;	27	use Compress::LZF;
		28
		29	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		30
12	$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
13		32
14	use strict;	33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
15		34
		35	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
		36	$YAML::Syck::ImplicitUnicode = 1;
		37
		38	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		39
16	our %COMMAND = ();	40	our %COMMAND = ();
		41	our %COMMAND_TIME = ();
		42
		43	our @EXTS = (); # list of extension package names
		44	our %EXTCMD = ();
		45	our %EXT_CORO = (); # coroutines bound to extensions
		46	our %EXT_MAP = (); # pluggable maps
		47
17	our @EVENT;	48	our @EVENT;
18	our %PROP_TYPE;	49	our $LIBDIR = datadir . "/ext";
19	our %PROP_IDX;
20	our $LIBDIR = maps_directory "perl";
21		50
22	our $TICK = MAX_TIME * 1e-6;	51	our $TICK = MAX_TIME * 1e-6;
23	our $TICK_WATCHER;	52	our $TICK_WATCHER;
		53	our $AIO_POLL_WATCHER;
		54	our $WRITE_RUNTIME_WATCHER;
24	our $NEXT_TICK;	55	our $NEXT_TICK;
		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;
		61
		62	our %CFG;
		63
		64	our $UPTIME; $UPTIME ||= time;
		65	our $RUNTIME;
		66
		67	our %PLAYER; # all users
		68	our %MAP; # all maps
		69	our $LINK_MAP; # the special {link} map, which is always available
		70	our $RANDOM_MAPS = cf::localdir . "/random";
		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 $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		78
		79	binmode STDOUT;
		80	binmode STDERR;
		81
		82	# read virtual server time, if available
		83	unless ($RUNTIME || !-e cf::localdir . "/runtime") {
		84	open my $fh, "<", cf::localdir . "/runtime"
		85	or die "unable to read runtime file: $!";
		86	$RUNTIME = <$fh> + 0.;
		87	}
		88
		89	mkdir cf::localdir;
		90	mkdir cf::localdir . "/" . cf::playerdir;
		91	mkdir cf::localdir . "/" . cf::tmpdir;
		92	mkdir cf::localdir . "/" . cf::uniquedir;
		93	mkdir $RANDOM_MAPS;
		94	mkdir $BDB_ENV_DIR;
		95
		96	our $EMERGENCY_POSITION;
		97
		98	sub cf::map::normalise;
		99
		100	#############################################################################
		101
		102	=head2 GLOBAL VARIABLES
		103
		104	=over 4
		105
		106	=item $cf::UPTIME
		107
		108	The timestamp of the server start (so not actually an uptime).
		109
		110	=item $cf::RUNTIME
		111
		112	The time this server has run, starts at 0 and is increased by $cf::TICK on
		113	every server tick.
		114
		115	=item $cf::LIBDIR
		116
		117	The perl library directory, where extensions and cf-specific modules can
		118	be found. It will be added to C<@INC> automatically.
		119
		120	=item $cf::NOW
		121
		122	The time of the last (current) server tick.
		123
		124	=item $cf::TICK
		125
		126	The interval between server ticks, in seconds.
		127
		128	=item %cf::CFG
		129
		130	Configuration for the server, loaded from C</etc/crossfire/config>, or
		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.
		139
		140	=back
		141
		142	=cut
25		143
26	BEGIN {	144	BEGIN {
27	*CORE::GLOBAL::warn = sub {	145	*CORE::GLOBAL::warn = sub {
28	my $msg = join "", @_;	146	my $msg = join "", @_;
		147	utf8::encode $msg;
		148
29	$msg .= "\n"	149	$msg .= "\n"
30	unless $msg =~ /\n$/;	150	unless $msg =~ /\n$/;
31		151
32	print STDERR "cfperl: $msg";
33	LOG llevError, "cfperl: $msg";	152	LOG llevError, $msg;
34	};	153	};
35	}	154	}
36		155
37	my %ignore_set = (MAP_PROP_PATH => 1); # I hate the plug-in api. Deeply!	156	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
38		157	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
39	# generate property mutators	158	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
40	sub prop_gen {	159	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
41	my ($prefix, $class) = @_;	160	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
42
43	no strict 'refs';
44
45	for my $prop (keys %PROP_TYPE) {
46	$prop =~ /^\Q$prefix\E_(.*$)/ or next;
47	my $sub = lc $1;
48
49	my $type = $PROP_TYPE{$prop};
50	my $idx = $PROP_IDX {$prop};
51
52	*{"$class\::get_$sub"} = *{"$class\::$sub"} = sub {
53	$_[0]->get_property ($type, $idx)
54	};
55
56	*{"$class\::set_$sub"} = sub {
57	$_[0]->set_property ($type, $idx, $_[1]);
58	} unless $ignore_set{$prop};
59	}
60	}
61
62	# auto-generate most of the API
63
64	prop_gen OBJECT_PROP => "cf::object";
65	# CFAPI_OBJECT_ANIMATION?
66	prop_gen PLAYER_PROP => "cf::object::player";
67
68	prop_gen MAP_PROP => "cf::map";
69	prop_gen ARCH_PROP => "cf::arch";
70
71	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	161	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';
72		162
73	# we bless all objects into (empty) derived classes to force a method lookup	163	# we bless all objects into (empty) derived classes to force a method lookup
74	# within the Safe compartment.	164	# within the Safe compartment.
75	for my $pkg (qw(cf::object cf::object::player cf::player cf::map cf::party cf::region cf::arch)) {	165	for my $pkg (qw(
		166	cf::global cf::attachable
		167	cf::object cf::object::player
		168	cf::client cf::player
		169	cf::arch cf::living
		170	cf::map cf::party cf::region
		171	)) {
76	no strict 'refs';	172	no strict 'refs';
77	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	173	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
78	}	174	}
79		175
80	$Event::DIED = sub {	176	$Event::DIED = sub {
81	warn "error in event callback: @_";	177	warn "error in event callback: @_";
82	};	178	};
83		179
84	my %ext_pkg;	180	=head2 UTILITY FUNCTIONS
85	my @exts;
86	my @hook;
87	my %command;
88	my %extcmd;
89		181
90	#############################################################################	182	=over 4
91	# utility functions	183
		184	=item dumpval $ref
		185
		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	}
92		206
93	use JSON::Syck (); # TODO# replace by JSON::PC once working	207	use JSON::Syck (); # TODO# replace by JSON::PC once working
		208
		209	=item $ref = cf::from_json $json
		210
		211	Converts a JSON string into the corresponding perl data structure.
		212
		213	=cut
94		214
95	sub from_json($) {	215	sub from_json($) {
96	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs	216	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
97	JSON::Syck::Load $_[0]	217	JSON::Syck::Load $_[0]
98	}	218	}
99		219
		220	=item $json = cf::to_json $ref
		221
		222	Converts a perl data structure into its JSON representation.
		223
		224	=cut
		225
100	sub to_json($) {	226	sub to_json($) {
101	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	227	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
102	JSON::Syck::Dump $_[0]	228	JSON::Syck::Dump $_[0]
103	}	229	}
104		230
		231	=item cf::lock_wait $string
		232
		233	Wait until the given lock is available. See cf::lock_acquire.
		234
		235	=item my $lock = cf::lock_acquire $string
		236
		237	Wait until the given lock is available and then acquires it and returns
		238	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
		239	for example when the coroutine gets canceled), the lock is automatically
		240	returned.
		241
		242	Lock names should begin with a unique identifier (for example, cf::map::find
		243	uses map_find and cf::map::load uses map_load).
		244
		245	=cut
		246
		247	our %LOCK;
		248
		249	sub lock_wait($) {
		250	my ($key) = @_;
		251
		252	# wait for lock, if any
		253	while ($LOCK{$key}) {
		254	push @{ $LOCK{$key} }, $Coro::current;
		255	Coro::schedule;
		256	}
		257	}
		258
		259	sub lock_acquire($) {
		260	my ($key) = @_;
		261
		262	# wait, to be sure we are not locked
		263	lock_wait $key;
		264
		265	$LOCK{$key} = [];
		266
		267	Coro::guard {
		268	# wake up all waiters, to be on the safe side
		269	$_->ready for @{ delete $LOCK{$key} };
		270	}
		271	}
		272
		273	sub freeze_mainloop {
		274	return unless $TICK_WATCHER->is_active;
		275
		276	my $guard = Coro::guard {
		277	$TICK_WATCHER->start;
		278	$WRITE_RUNTIME_WATCHER->start;
		279	};
		280	$WRITE_RUNTIME_WATCHER->stop;
		281	$TICK_WATCHER->stop;
		282	$guard
		283	}
		284
		285	=item cf::async { BLOCK }
		286
		287	Currently the same as Coro::async_pool, meaning you cannot use
		288	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		289	thing you are allowed to do is call C<prio> on it.
		290
		291	=cut
		292
		293	BEGIN { *async = \&Coro::async_pool }
		294
		295	=item cf::sync_job { BLOCK }
		296
		297	The design of crossfire+ requires that the main coro ($Coro::main) is
		298	always able to handle events or runnable, as crossfire+ is only partly
		299	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.
		300
		301	If it must be done, put the blocking parts into C<sync_job>. This will run
		302	the given BLOCK in another coroutine while waiting for the result. The
		303	server will be frozen during this time, so the block should either finish
		304	fast or be very important.
		305
		306	=cut
		307
		308	sub sync_job(&) {
		309	my ($job) = @_;
		310
		311	if ($Coro::current == $Coro::main) {
		312	# this is the main coro, too bad, we have to block
		313	# till the operation succeeds, freezing the server :/
		314
		315	# TODO: use suspend/resume instead
		316	# (but this is cancel-safe)
		317	my $freeze_guard = freeze_mainloop;
		318
		319	my $busy = 1;
		320	my @res;
		321
		322	(async {
		323	@res = eval { $job->() };
		324	warn $@ if $@;
		325	undef $busy;
		326	})->prio (Coro::PRIO_MAX);
		327
		328	while ($busy) {
		329	Coro::cede or Event::one_event;
		330	}
		331
		332	wantarray ? @res : $res[0]
		333	} else {
		334	# we are in another coroutine, how wonderful, everything just works
		335
		336	$job->()
		337	}
		338	}
		339
		340	=item $coro = cf::async_ext { BLOCK }
		341
		342	Like async, but this coro is automatically being canceled when the
		343	extension calling this is being unloaded.
		344
		345	=cut
		346
		347	sub async_ext(&) {
		348	my $cb = shift;
		349
		350	my $coro = &Coro::async ($cb);
		351
		352	$coro->on_destroy (sub {
		353	delete $EXT_CORO{$coro+0};
		354	});
		355	$EXT_CORO{$coro+0} = $coro;
		356
		357	$coro
		358	}
		359
		360	sub write_runtime {
		361	my $runtime = cf::localdir . "/runtime";
		362
		363	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		364	or return;
		365
		366	my $value = $cf::RUNTIME + 90 + 10;
		367	# 10 is the runtime save interval, for a monotonic clock
		368	# 60 allows for the watchdog to kill the server.
		369
		370	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		371	and return;
		372
		373	# always fsync - this file is important
		374	aio_fsync $fh
		375	and return;
		376
		377	close $fh
		378	or return;
		379
		380	aio_rename "$runtime~", $runtime
		381	and return;
		382
		383	1
		384	}
		385
		386	=back
		387
		388	=cut
		389
105	#############################################################################	390	#############################################################################
106	# "new" plug-in system
107		391
108	=item cf::object::attach ... # NYI	392	=head2 ATTACHABLE OBJECTS
109		393
110	=item cf::attach_global ...	394	Many objects in crossfire are so-called attachable objects. That means you can
		395	attach callbacks/event handlers (a collection of which is called an "attachment")
		396	to it. All such attachable objects support the following methods.
111		397
112	=item cf::attach_to_type $object_type, ...	398	In the following description, CLASS can be any of C<global>, C<object>
		399	C<player>, C<client> or C<map> (i.e. the attachable objects in
		400	crossfire+).
113		401
114	=item cf::attach_to_objects ...	402	=over 4
115		403
116	=item cf::attach_to_players ...	404	=item $attachable->attach ($attachment, key => $value...)
117		405
118	=item cf::attach_to_maps ...	406	=item $attachable->detach ($attachment)
119		407
		408	Attach/detach a pre-registered attachment to a specific object and give it
		409	the specified key/value pairs as arguments.
		410
		411	Example, attach a minesweeper attachment to the given object, making it a
		412	10x10 minesweeper game:
		413
		414	$obj->attach (minesweeper => width => 10, height => 10);
		415
		416	=item $bool = $attachable->attached ($name)
		417
		418	Checks wether the named attachment is currently attached to the object.
		419
		420	=item cf::CLASS->attach ...
		421
		422	=item cf::CLASS->detach ...
		423
		424	Define an anonymous attachment and attach it to all objects of the given
		425	CLASS. See the next function for an explanation of its arguments.
		426
		427	You can attach to global events by using the C<cf::global> class.
		428
		429	Example, log all player logins:
		430
		431	cf::player->attach (
		432	on_login => sub {
		433	my ($pl) = @_;
		434	...
		435	},
		436	);
		437
		438	Example, attach to the jeweler skill:
		439
		440	cf::object->attach (
		441	type => cf::SKILL,
		442	subtype => cf::SK_JEWELER,
		443	on_use_skill => sub {
		444	my ($sk, $ob, $part, $dir, $msg) = @_;
		445	...
		446	},
		447	);
		448
120	=item cf:register_attachment $name, ...	449	=item cf::CLASS::attachment $name, ...
121		450
122	prio => $number, # lower is earlier	451	Register an attachment by C<$name> through which attachable objects of the
123	on_xxx => \&cb,	452	given CLASS can refer to this attachment.
		453
		454	Some classes such as crossfire maps and objects can specify attachments
		455	that are attached at load/instantiate time, thus the need for a name.
		456
		457	These calls expect any number of the following handler/hook descriptions:
		458
		459	=over 4
		460
		461	=item prio => $number
		462
		463	Set the priority for all following handlers/hooks (unless overwritten
		464	by another C<prio> setting). Lower priority handlers get executed
		465	earlier. The default priority is C<0>, and many built-in handlers are
		466	registered at priority C<-1000>, so lower priorities should not be used
		467	unless you know what you are doing.
		468
		469	=item type => $type
		470
		471	(Only for C<< cf::object->attach >> calls), limits the attachment to the
		472	given type of objects only (the additional parameter C<subtype> can be
		473	used to further limit to the given subtype).
		474
		475	=item on_I<event> => \&cb
		476
		477	Call the given code reference whenever the named event happens (event is
		478	something like C<instantiate>, C<apply>, C<use_skill> and so on, and which
		479	handlers are recognised generally depends on the type of object these
		480	handlers attach to).
		481
		482	See F<include/eventinc.h> for the full list of events supported, and their
		483	class.
		484
124	package => package::,	485	=item package => package::
		486
		487	Look for sub functions of the name C<< on_I<event> >> in the given
		488	package and register them. Only handlers for eevents supported by the
		489	object/class are recognised.
		490
		491	=back
		492
		493	Example, define an attachment called "sockpuppet" that calls the given
		494	event handler when a monster attacks:
		495
		496	cf::object::attachment sockpuppet =>
		497	on_skill_attack => sub {
		498	my ($self, $victim) = @_;
		499	...
		500	}
		501	}
		502
		503	=item $attachable->valid
		504
		505	Just because you have a perl object does not mean that the corresponding
		506	C-level object still exists. If you try to access an object that has no
		507	valid C counterpart anymore you get an exception at runtime. This method
		508	can be used to test for existence of the C object part without causing an
		509	exception.
125		510
126	=cut	511	=cut
127		512
128	# the following variables are defined in .xs and must not be re-created	513	# the following variables are defined in .xs and must not be re-created
129	our @CB_GLOBAL = (); # registry for all global events	514	our @CB_GLOBAL = (); # registry for all global events
		515	our @CB_ATTACHABLE = (); # registry for all attachables
130	our @CB_OBJECT = (); # all objects (should not be used except in emergency)	516	our @CB_OBJECT = (); # all objects (should not be used except in emergency)
131	our @CB_PLAYER = ();	517	our @CB_PLAYER = ();
		518	our @CB_CLIENT = ();
132	our @CB_TYPE = (); # registry for type (cf-object class) based events	519	our @CB_TYPE = (); # registry for type (cf-object class) based events
133	our @CB_MAP = ();	520	our @CB_MAP = ();
134		521
135	my %attachment;	522	my %attachment;
136		523
		524	sub cf::attachable::thawer_merge {
		525	# simply override everything except _meta
		526	local $_[0]{_meta};
		527	%{$_[0]} = %{$_[1]};
		528	}
		529
137	sub _attach_cb($\%$$$) {	530	sub _attach_cb($$$$) {
138	my ($registry, $undo, $event, $prio, $cb) = @_;	531	my ($registry, $event, $prio, $cb) = @_;
139		532
140	use sort 'stable';	533	use sort 'stable';
141		534
142	$cb = [$prio, $cb];	535	$cb = [$prio, $cb];
143		536
144	@{$registry->[$event]} = sort	537	@{$registry->[$event]} = sort
145	{ $a->[0] cmp $b->[0] }	538	{ $a->[0] cmp $b->[0] }
146	@{$registry->[$event] || []}, $cb;	539	@{$registry->[$event] || []}, $cb;
147
148	push @{$undo->{cb}}, [$event, $cb];
149	}	540	}
		541
		542	# hack
		543	my %attachable_klass = map +($_ => 1), KLASS_OBJECT, KLASS_CLIENT, KLASS_PLAYER, KLASS_MAP;
150		544
151	# attach handles attaching event callbacks	545	# attach handles attaching event callbacks
152	# the only thing the caller has to do is pass the correct	546	# the only thing the caller has to do is pass the correct
153	# registry (== where the callback attaches to).	547	# registry (== where the callback attaches to).
154	sub _attach(\@$@) {	548	sub _attach {
155	my ($registry, $klass, @arg) = @_;	549	my ($registry, $klass, @arg) = @_;
156		550
		551	my $object_type;
157	my $prio = 0;	552	my $prio = 0;
158
159	my %undo = (
160	registry => $registry,
161	cb => [],
162	);
163
164	my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT;	553	my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT;
		554
		555	#TODO: get rid of this hack
		556	if ($attachable_klass{$klass}) {
		557	%cb_id = (%cb_id, map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == KLASS_ATTACHABLE, 0 .. $#EVENT);
		558	}
165		559
166	while (@arg) {	560	while (@arg) {
167	my $type = shift @arg;	561	my $type = shift @arg;
168		562
169	if ($type eq "prio") {	563	if ($type eq "prio") {
170	$prio = shift @arg;	564	$prio = shift @arg;
171		565
		566	} elsif ($type eq "type") {
		567	$object_type = shift @arg;
		568	$registry = $CB_TYPE[$object_type] ||= [];
		569
		570	} elsif ($type eq "subtype") {
		571	defined $object_type or Carp::croak "subtype specified without type";
		572	my $object_subtype = shift @arg;
		573	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];
		574
172	} elsif ($type eq "package") {	575	} elsif ($type eq "package") {
173	my $pkg = shift @arg;	576	my $pkg = shift @arg;
174		577
175	while (my ($name, $id) = each %cb_id) {	578	while (my ($name, $id) = each %cb_id) {
176	if (my $cb = $pkg->can ($name)) {	579	if (my $cb = $pkg->can ($name)) {
177	_attach_cb $registry, %undo, $id, $prio, $cb;	580	_attach_cb $registry, $id, $prio, $cb;
178	}	581	}
179	}	582	}
180		583
181	} elsif (exists $cb_id{$type}) {	584	} elsif (exists $cb_id{$type}) {
182	_attach_cb $registry, %undo, $cb_id{$type}, $prio, shift @arg;	585	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
183		586
184	} elsif (ref $type) {	587	} elsif (ref $type) {
185	warn "attaching objects not supported, ignoring.\n";	588	warn "attaching objects not supported, ignoring.\n";
186		589
187	} else {	590	} else {
188	shift @arg;	591	shift @arg;
189	warn "attach argument '$type' not supported, ignoring.\n";	592	warn "attach argument '$type' not supported, ignoring.\n";
190	}	593	}
191	}	594	}
192
193	\%undo
194	}	595	}
195		596
196	sub cf::object::attach {	597	sub _object_attach {
197	die;	598	my ($obj, $name, %arg) = @_;
198	}
199		599
200	sub attach_global {	600	return if exists $obj->{_attachment}{$name};
201	_attach @CB_GLOBAL, KLASS_GLOBAL, @_
202	}
203		601
204	sub attach_to_type {	602	if (my $attach = $attachment{$name}) {
205	my $type = shift;	603	my $registry = $obj->registry;
206		604
207	_attach @{$CB_TYPE[$type]}, KLASS_OBJECT, @_	605	for (@$attach) {
208	}	606	my ($klass, @attach) = @$_;
		607	_attach $registry, $klass, @attach;
		608	}
209		609
210	sub attach_to_objects {	610	$obj->{$name} = \%arg;
211	_attach @CB_OBJECT, KLASS_OBJECT, @_	611	} else {
212	}	612	warn "object uses attachment '$name' that is not available, postponing.\n";
		613	}
213		614
214	sub attach_to_players {	615	$obj->{_attachment}{$name} = undef;
215	_attach @CB_PLAYER, KLASS_PLAYER, @_
216	}	616	}
217		617
218	sub attach_to_maps {	618	sub cf::attachable::attach {
219	_attach @CB_MAP, KLASS_MAP, @_	619	if (ref $_[0]) {
220	}	620	_object_attach @_;
		621	} else {
		622	_attach shift->_attach_registry, @_;
		623	}
		624	};
221		625
222	sub register_attachment {	626	# all those should be optimised
		627	sub cf::attachable::detach {
		628	my ($obj, $name) = @_;
		629
		630	if (ref $obj) {
		631	delete $obj->{_attachment}{$name};
		632	reattach ($obj);
		633	} else {
		634	Carp::croak "cannot, currently, detach class attachments";
		635	}
		636	};
		637
		638	sub cf::attachable::attached {
		639	my ($obj, $name) = @_;
		640
		641	exists $obj->{_attachment}{$name}
		642	}
		643
		644	for my $klass (qw(ATTACHABLE GLOBAL OBJECT PLAYER CLIENT MAP)) {
		645	eval "#line " . __LINE__ . " 'cf.pm'
		646	sub cf::\L$klass\E::_attach_registry {
		647	(\\\@CB_$klass, KLASS_$klass)
		648	}
		649
		650	sub cf::\L$klass\E::attachment {
223	my $name = shift;	651	my \$name = shift;
224		652
225	$attachment{$name} = [@_];	653	\$attachment{\$name} = [[KLASS_$klass, \@_]];
		654	}
		655	";
		656	die if $@;
226	}	657	}
227		658
228	our $override;	659	our $override;
229	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	660	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
230		661
…		…
244	for (@$callbacks) {	675	for (@$callbacks) {
245	eval { &{$_->[1]} };	676	eval { &{$_->[1]} };
246		677
247	if ($@) {	678	if ($@) {
248	warn "$@";	679	warn "$@";
249	warn "... while processing $EVENT[$event][0] event, skipping processing altogether.\n";	680	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
250	override;	681	override;
251	}	682	}
252		683
253	return 1 if $override;	684	return 1 if $override;
254	}	685	}
255		686
256	0	687	0
257	}	688	}
		689
		690	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)
		691
		692	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
		693
		694	Generate an object-specific event with the given arguments.
		695
		696	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
		697	removed in future versions), and there is no public API to access override
		698	results (if you must, access C<@cf::invoke_results> directly).
		699
		700	=back
		701
		702	=cut
258		703
259	#############################################################################	704	#############################################################################
260	# object support	705	# object support
261		706
262	sub instantiate {	707	sub reattach {
		708	# basically do the same as instantiate, without calling instantiate
263	my ($obj, $data) = @_;	709	my ($obj) = @_;
		710
		711	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
		712
264	my $registry = $obj->registry;	713	my $registry = $obj->registry;
265		714
266	$data = from_json $data;	715	@$registry = ();
267		716
268	for (@$data) {	717	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} };
269	my ($pri, $name, @args) = @$_;
270		718
		719	for my $name (keys %{ $obj->{_attachment} || {} }) {
271	if (my $attach = $attachment{$name}) {	720	if (my $attach = $attachment{$name}) {
		721	for (@$attach) {
		722	my ($klass, @attach) = @$_;
272	_attach @$registry, KLASS_OBJECT, @$attach;	723	_attach $registry, $klass, @attach;
		724	}
		725	} else {
		726	warn "object uses attachment '$name' that is not available, postponing.\n";
		727	}
		728	}
		729	}
273		730
274	if (my $cb = delete $registry->[EVENT_OBJECT_INSTANTIATE]) {	731	cf::attachable->attach (
		732	prio => -1000000,
		733	on_instantiate => sub {
		734	my ($obj, $data) = @_;
		735
		736	$data = from_json $data;
		737
		738	for (@$data) {
		739	my ($name, $args) = @$_;
		740
		741	$obj->attach ($name, %{$args || {} });
		742	}
		743	},
		744	on_reattach => \&reattach,
		745	on_clone => sub {
		746	my ($src, $dst) = @_;
		747
		748	@{$dst->registry} = @{$src->registry};
		749
		750	%$dst = %$src;
		751
		752	%{$dst->{_attachment}} = %{$src->{_attachment}}
		753	if exists $src->{_attachment};
		754	},
		755	);
		756
		757	sub object_freezer_save {
		758	my ($filename, $rdata, $objs) = @_;
		759
		760	sync_job {
		761	if (length $$rdata) {
		762	warn sprintf "saving %s (%d,%d)\n",
		763	$filename, length $$rdata, scalar @$objs;
		764
		765	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
		766	chmod SAVE_MODE, $fh;
		767	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		768	aio_fsync $fh if $cf::USE_FSYNC;
		769	close $fh;
		770
275	for (@$cb) {	771	if (@$objs) {
276	eval { $_->[1]->($obj, @args); };	772	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
277	if ($@) {	773	chmod SAVE_MODE, $fh;
278	warn "$@";	774	my $data = Storable::nfreeze { version => 1, objs => $objs };
279	warn "... while processing '$name' instantiate with args <@args>\n";	775	aio_write $fh, 0, (length $data), $data, 0;
		776	aio_fsync $fh if $cf::USE_FSYNC;
		777	close $fh;
		778	aio_rename "$filename.pst~", "$filename.pst";
280	}	779	}
		780	} else {
		781	aio_unlink "$filename.pst";
		782	}
		783
		784	aio_rename "$filename~", $filename;
		785	} else {
		786	warn "FATAL: $filename~: $!\n";
		787	}
		788	} else {
		789	aio_unlink $filename;
		790	aio_unlink "$filename.pst";
		791	}
		792
		793	#d##TODO# nuke non .map-files if exist
		794	if ($filename =~ s/\.map$//) {
		795	aio_unlink $filename;
		796	aio_unlink "$filename.pst";
		797	}
		798	}
		799	}
		800
		801	sub object_freezer_as_string {
		802	my ($rdata, $objs) = @_;
		803
		804	use Data::Dumper;
		805
		806	$$rdata . Dumper $objs
		807	}
		808
		809	sub object_thawer_load {
		810	my ($filename) = @_;
		811
		812	my ($data, $av);
		813
		814	#d#TODO remove .map if file does not exist
		815	aio_stat $filename and $filename =~ s/\.map$//;
		816
		817	(aio_load $filename, $data) >= 0
		818	or return;
		819
		820	unless (aio_stat "$filename.pst") {
		821	(aio_load "$filename.pst", $av) >= 0
		822	or return;
		823	$av = eval { (Storable::thaw $av)->{objs} };
		824	}
		825
		826	warn sprintf "loading %s (%d)\n",
		827	$filename, length $data, scalar @{$av || []};#d#
		828	return ($data, $av);
		829	}
		830
		831	#############################################################################
		832	# command handling &c
		833
		834	=item cf::register_command $name => \&callback($ob,$args);
		835
		836	Register a callback for execution when the client sends the user command
		837	$name.
		838
		839	=cut
		840
		841	sub register_command {
		842	my ($name, $cb) = @_;
		843
		844	my $caller = caller;
		845	#warn "registering command '$name/$time' to '$caller'";
		846
		847	push @{ $COMMAND{$name} }, [$caller, $cb];
		848	}
		849
		850	=item cf::register_extcmd $name => \&callback($pl,$packet);
		851
		852	Register a callbackf ro execution when the client sends an extcmd packet.
		853
		854	If the callback returns something, it is sent back as if reply was being
		855	called.
		856
		857	=cut
		858
		859	sub register_extcmd {
		860	my ($name, $cb) = @_;
		861
		862	$EXTCMD{$name} = $cb;
		863	}
		864
		865	cf::player->attach (
		866	on_command => sub {
		867	my ($pl, $name, $params) = @_;
		868
		869	my $cb = $COMMAND{$name}
		870	or return;
		871
		872	for my $cmd (@$cb) {
		873	$cmd->[1]->($pl->ob, $params);
		874	}
		875
		876	cf::override;
		877	},
		878	on_extcmd => sub {
		879	my ($pl, $buf) = @_;
		880
		881	my $msg = eval { from_json $buf };
		882
		883	if (ref $msg) {
		884	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
		885	if (my %reply = $cb->($pl, $msg)) {
		886	$pl->ext_reply ($msg->{msgid}, %reply);
281	}	887	}
282	}	888	}
283	} else {	889	} else {
284	warn "object uses attachment $name that is not available, postponing.\n";	890	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
285	}	891	}
286		892
287	push @{$obj->{_attachment}}, $name;	893	cf::override;
288	}
289	}
290
291	# basically do the same as instantiate, without calling instantiate
292	sub reattach {
293	my ($obj) = @_;
294	my $registry = $obj->registry;
295
296	warn "reattach<@_, $_>\n";
297	}
298
299	attach_to_objects
300	prio => -1000000,
301	on_clone => sub {
302	my ($src, $dst) = @_;
303
304	@{$dst->registry} = @{$src->registry};
305	warn "registry clone ", join ":", @{$src->registry};#d#
306
307	%$dst = %$src;
308
309	$dst->{_attachment} = [@{ $src->{_attachment} }]
310	if exists $src->{_attachment};
311
312	warn "clone<@_>\n";#d#
313	},	894	},
314	;	895	);
315
316	#############################################################################
317	# old plug-in events
318
319	sub inject_event {
320	my $extension = shift;
321	my $event_code = shift;
322
323	my $cb = $hook[$event_code]{$extension}
324	or return;
325
326	&$cb
327	}
328
329	sub inject_global_event {
330	my $event = shift;
331
332	my $cb = $hook[$event]
333	or return;
334
335	List::Util::max map &$_, values %$cb
336	}
337
338	sub inject_command {
339	my ($name, $obj, $params) = @_;
340
341	for my $cmd (@{ $command{$name} }) {
342	$cmd->[1]->($obj, $params);
343	}
344
345	-1
346	}
347
348	sub register_command {
349	my ($name, $time, $cb) = @_;
350
351	my $caller = caller;
352	#warn "registering command '$name/$time' to '$caller'";
353
354	push @{ $command{$name} }, [$time, $cb, $caller];
355	$COMMAND{"$name\000"} = List::Util::max map $_->[0], @{ $command{$name} };
356	}
357
358	sub register_extcmd {
359	my ($name, $cb) = @_;
360
361	my $caller = caller;
362	#warn "registering extcmd '$name' to '$caller'";
363
364	$extcmd{$name} = [$cb, $caller];
365	}
366
367	sub register {
368	my ($base, $pkg) = @_;
369
370	#TODO
371	}
372		896
373	sub load_extension {	897	sub load_extension {
374	my ($path) = @_;	898	my ($path) = @_;
375		899
376	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	900	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
377	my $base = $1;	901	my $base = $1;
378	my $pkg = $1;	902	my $pkg = $1;
379	$pkg =~ s/[^[:word:]]/_/g;	903	$pkg =~ s/[^[:word:]]/_/g;
380	$pkg = "ext::$pkg";	904	$pkg = "ext::$pkg";
381		905
382	warn "loading '$path' into '$pkg'\n";	906	warn "... loading '$path' into '$pkg'\n";
383		907
384	open my $fh, "<:utf8", $path	908	open my $fh, "<:utf8", $path
385	or die "$path: $!";	909	or die "$path: $!";
386		910
387	my $source =	911	my $source =
388	"package $pkg; use strict; use utf8;\n"	912	"package $pkg; use strict; use utf8;\n"
389	. "#line 1 \"$path\"\n{\n"	913	. "#line 1 \"$path\"\n{\n"
390	. (do { local $/; <$fh> })	914	. (do { local $/; <$fh> })
391	. "\n};\n1";	915	. "\n};\n1";
392		916
393	eval $source	917	unless (eval $source) {
394	or die "$path: $@";	918	my $msg = $@ ? "$path: $@\n"
395		919	: "extension disabled.\n";
396	push @exts, $pkg;	920	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
397	$ext_pkg{$base} = $pkg;	921	warn $@;
398		922	warn "mandatory extension failed to load, exiting.\n";
399	# no strict 'refs';	923	exit 1;
400	# @{"$pkg\::ISA"} = ext::;	924	}
401		925	die $@;
402	register $base, $pkg;
403	}
404
405	sub unload_extension {
406	my ($pkg) = @_;
407
408	warn "removing extension $pkg\n";
409
410	# remove hooks
411	#TODO
412	# for my $idx (0 .. $#PLUGIN_EVENT) {
413	# delete $hook[$idx]{$pkg};
414	# }	926	}
415		927
416	# remove commands	928	push @EXTS, $pkg;
417	for my $name (keys %command) {
418	my @cb = grep $_->[2] ne $pkg, @{ $command{$name} };
419
420	if (@cb) {
421	$command{$name} = \@cb;
422	$COMMAND{"$name\000"} = List::Util::max map $_->[0], @cb;
423	} else {
424	delete $command{$name};
425	delete $COMMAND{"$name\000"};
426	}
427	}
428
429	# remove extcmds
430	for my $name (grep $extcmd{$_}[1] eq $pkg, keys %extcmd) {
431	delete $extcmd{$name};
432	}
433
434	if (my $cb = $pkg->can ("unload")) {
435	eval {
436	$cb->($pkg);
437	1
438	} or warn "$pkg unloaded, but with errors: $@";
439	}
440
441	Symbol::delete_package $pkg;
442	}	929	}
443		930
444	sub load_extensions {	931	sub load_extensions {
445	my $LIBDIR = maps_directory "perl";
446
447	for my $ext (<$LIBDIR/*.ext>) {	932	for my $ext (<$LIBDIR/*.ext>) {
448	next unless -r $ext;	933	next unless -r $ext;
449	eval {	934	eval {
450	load_extension $ext;	935	load_extension $ext;
451	1	936	1
452	} or warn "$ext not loaded: $@";	937	} or warn "$ext not loaded: $@";
453	}	938	}
454	}	939	}
455		940
456	sub _perl_reload(&) {	941	#############################################################################
		942
		943	=head2 CORE EXTENSIONS
		944
		945	Functions and methods that extend core crossfire objects.
		946
		947	=cut
		948
		949	package cf::player;
		950
		951	use Coro::AIO;
		952
		953	=head3 cf::player
		954
		955	=over 4
		956
		957	=item cf::player::find $login
		958
		959	Returns the given player object, loading it if necessary (might block).
		960
		961	=cut
		962
		963	sub playerdir($) {
		964	cf::localdir
		965	. "/"
		966	. cf::playerdir
		967	. "/"
		968	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		969	}
		970
		971	sub path($) {
		972	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		973
		974	(playerdir $login) . "/$login.pl"
		975	}
		976
		977	sub find_active($) {
		978	$cf::PLAYER{$_[0]}
		979	and $cf::PLAYER{$_[0]}->active
		980	and $cf::PLAYER{$_[0]}
		981	}
		982
		983	sub exists($) {
		984	my ($login) = @_;
		985
		986	$cf::PLAYER{$login}
		987	or cf::sync_job { !aio_stat path $login }
		988	}
		989
		990	sub find($) {
		991	return $cf::PLAYER{$_[0]} || do {
		992	my $login = $_[0];
		993
		994	my $guard = cf::lock_acquire "user_find:$login";
		995
		996	$cf::PLAYER{$_[0]} || do {
		997	my $pl = load_pl path $login
		998	or return;
		999	$cf::PLAYER{$login} = $pl
		1000	}
		1001	}
		1002	}
		1003
		1004	sub save($) {
		1005	my ($pl) = @_;
		1006
		1007	return if $pl->{deny_save};
		1008
		1009	my $path = path $pl;
		1010	my $guard = cf::lock_acquire "user_save:$path";
		1011
		1012	return if $pl->{deny_save};
		1013
		1014	aio_mkdir playerdir $pl, 0770;
		1015	$pl->{last_save} = $cf::RUNTIME;
		1016
		1017	$pl->save_pl ($path);
		1018	Coro::cede;
		1019	}
		1020
		1021	sub new($) {
		1022	my ($login) = @_;
		1023
		1024	my $self = create;
		1025
		1026	$self->ob->name ($login);
		1027	$self->{deny_save} = 1;
		1028
		1029	$cf::PLAYER{$login} = $self;
		1030
		1031	$self
		1032	}
		1033
		1034	=item $pl->quit_character
		1035
		1036	Nukes the player without looking back. If logged in, the connection will
		1037	be destroyed. May block for a long time.
		1038
		1039	=cut
		1040
		1041	sub quit_character {
		1042	my ($pl) = @_;
		1043
		1044	$pl->{deny_save} = 1;
		1045	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1046
		1047	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1048	$pl->deactivate;
		1049	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1050	$pl->ns->destroy if $pl->ns;
		1051
		1052	my $path = playerdir $pl;
		1053	my $temp = "$path~$cf::RUNTIME~deleting~";
		1054	aio_rename $path, $temp;
		1055	delete $cf::PLAYER{$pl->ob->name};
		1056	$pl->destroy;
		1057	IO::AIO::aio_rmtree $temp;
		1058	}
		1059
		1060	=item cf::player::list_logins
		1061
		1062	Returns am arrayref of all valid playernames in the system, can take a
		1063	while and may block, so not sync_job-capable, ever.
		1064
		1065	=cut
		1066
		1067	sub list_logins {
		1068	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir
		1069	or return [];
		1070
		1071	my @logins;
		1072
		1073	for my $login (@$dirs) {
		1074	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1075	aio_read $fh, 0, 512, my $buf, 0 or next;
		1076	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1077
		1078	utf8::decode $login;
		1079	push @logins, $login;
		1080	}
		1081
		1082	\@logins
		1083	}
		1084
		1085	=item $player->maps
		1086
		1087	Returns an arrayref of map paths that are private for this
		1088	player. May block.
		1089
		1090	=cut
		1091
		1092	sub maps($) {
		1093	my ($pl) = @_;
		1094
		1095	$pl = ref $pl ? $pl->ob->name : $pl;
		1096
		1097	my $files = aio_readdir playerdir $pl
		1098	or return;
		1099
		1100	my @paths;
		1101
		1102	for (@$files) {
		1103	utf8::decode $_;
		1104	next if /\.(?:pl|pst)$/;
		1105	next unless /^$PATH_SEP/o;
		1106
		1107	push @paths, cf::map::normalise "~$pl/$_";
		1108	}
		1109
		1110	\@paths
		1111	}
		1112
		1113	=item $player->ext_reply ($msgid, $msgtype, %msg)
		1114
		1115	Sends an ext reply to the player.
		1116
		1117	=cut
		1118
		1119	sub ext_reply($$$%) {
		1120	my ($self, $id, %msg) = @_;
		1121
		1122	$msg{msgid} = $id;
		1123
		1124	$self->send ("ext " . cf::to_json \%msg);
		1125	}
		1126
		1127	package cf;
		1128
		1129	=back
		1130
		1131
		1132	=head3 cf::map
		1133
		1134	=over 4
		1135
		1136	=cut
		1137
		1138	package cf::map;
		1139
		1140	use Fcntl;
		1141	use Coro::AIO;
		1142
		1143	use overload
		1144	'""' => \&as_string,
		1145	fallback => 1;
		1146
		1147	our $MAX_RESET = 3600;
		1148	our $DEFAULT_RESET = 3000;
		1149
		1150	sub generate_random_map {
		1151	my ($self, $rmp) = @_;
		1152	# mit "rum" bekleckern, nicht
		1153	$self->_create_random_map (
		1154	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
		1155	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
		1156	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
		1157	$rmp->{exit_on_final_map},
		1158	$rmp->{xsize}, $rmp->{ysize},
		1159	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
		1160	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
		1161	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
		1162	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
		1163	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
		1164	(cf::region::find $rmp->{region}), $rmp->{custom}
		1165	)
		1166	}
		1167
		1168	=item cf::map->register ($regex, $prio)
		1169
		1170	Register a handler for the map path matching the given regex at the
		1171	givne priority (higher is better, built-in handlers have priority 0, the
		1172	default).
		1173
		1174	=cut
		1175
		1176	sub register {
		1177	my (undef, $regex, $prio) = @_;
		1178	my $pkg = caller;
		1179
		1180	no strict;
		1181	push @{"$pkg\::ISA"}, __PACKAGE__;
		1182
		1183	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1184	}
		1185
		1186	# also paths starting with '/'
		1187	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1188
		1189	sub thawer_merge {
		1190	my ($self, $merge) = @_;
		1191
		1192	# we have to keep some variables in memory intact
		1193	local $self->{path};
		1194	local $self->{load_path};
		1195	local $self->{deny_save};
		1196	local $self->{deny_reset};
		1197
		1198	$self->SUPER::thawer_merge ($merge);
		1199	}
		1200
		1201	sub normalise {
		1202	my ($path, $base) = @_;
		1203
		1204	$path = "$path"; # make sure its a string
		1205
		1206	$path =~ s/\.map$//;
		1207
		1208	# map plan:
		1209	#
		1210	# /! non-realised random map exit (special hack!)
		1211	# {... are special paths that are not being touched
		1212	# ?xxx/... are special absolute paths
		1213	# ?random/... random maps
		1214	# /... normal maps
		1215	# ~user/... per-player map of a specific user
		1216
		1217	$path =~ s/$PATH_SEP/\//go;
		1218
		1219	# treat it as relative path if it starts with
		1220	# something that looks reasonable
		1221	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1222	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1223
		1224	$base =~ s{[^/]+/?$}{};
		1225	$path = "$base/$path";
		1226	}
		1227
		1228	for ($path) {
		1229	redo if s{//}{/};
		1230	redo if s{/\.?/}{/};
		1231	redo if s{/[^/]+/\.\./}{/};
		1232	}
		1233
		1234	$path
		1235	}
		1236
		1237	sub new_from_path {
		1238	my (undef, $path, $base) = @_;
		1239
		1240	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1241
		1242	$path = normalise $path, $base;
		1243
		1244	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1245	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1246	my $self = bless cf::map::new, $pkg;
		1247	$self->{path} = $path; $self->path ($path);
		1248	$self->init; # pass $1 etc.
		1249	return $self;
		1250	}
		1251	}
		1252
		1253	Carp::carp "unable to resolve path '$path' (base '$base').";
		1254	()
		1255	}
		1256
		1257	sub init {
		1258	my ($self) = @_;
		1259
		1260	$self
		1261	}
		1262
		1263	sub as_string {
		1264	my ($self) = @_;
		1265
		1266	"$self->{path}"
		1267	}
		1268
		1269	# the displayed name, this is a one way mapping
		1270	sub visible_name {
		1271	&as_string
		1272	}
		1273
		1274	# the original (read-only) location
		1275	sub load_path {
		1276	my ($self) = @_;
		1277
		1278	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}
		1279	}
		1280
		1281	# the temporary/swap location
		1282	sub save_path {
		1283	my ($self) = @_;
		1284
		1285	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1286	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path
		1287	}
		1288
		1289	# the unique path, undef == no special unique path
		1290	sub uniq_path {
		1291	my ($self) = @_;
		1292
		1293	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1294	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path
		1295	}
		1296
		1297	# and all this just because we cannot iterate over
		1298	# all maps in C++...
		1299	sub change_all_map_light {
		1300	my ($change) = @_;
		1301
		1302	$_->change_map_light ($change)
		1303	for grep $_->outdoor, values %cf::MAP;
		1304	}
		1305
		1306	sub unlink_save {
		1307	my ($self) = @_;
		1308
		1309	utf8::encode (my $save = $self->save_path);
		1310	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1311	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1312
		1313	#d#TODO remove .map and also nuke
		1314	$save =~ s/\.map// or return;#d#
		1315	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;#d#
		1316	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";#d#
		1317	}
		1318
		1319	sub load_header_from($) {
		1320	my ($self, $path) = @_;
		1321
		1322	utf8::encode $path;
		1323	#aio_open $path, O_RDONLY, 0
		1324	# or return;
		1325
		1326	$self->_load_header ($path)
		1327	or return;
		1328
		1329	$self->{load_path} = $path;
		1330
		1331	1
		1332	}
		1333
		1334	sub load_header_orig {
		1335	my ($self) = @_;
		1336
		1337	$self->load_header_from ($self->load_path)
		1338	}
		1339
		1340	sub load_header_temp {
		1341	my ($self) = @_;
		1342
		1343	$self->load_header_from ($self->save_path)
		1344	}
		1345
		1346	sub prepare_temp {
		1347	my ($self) = @_;
		1348
		1349	$self->last_access ((delete $self->{last_access})
		1350	|| $cf::RUNTIME); #d#
		1351	# safety
		1352	$self->{instantiate_time} = $cf::RUNTIME
		1353	if $self->{instantiate_time} > $cf::RUNTIME;
		1354	}
		1355
		1356	sub prepare_orig {
		1357	my ($self) = @_;
		1358
		1359	$self->{load_original} = 1;
		1360	$self->{instantiate_time} = $cf::RUNTIME;
		1361	$self->last_access ($cf::RUNTIME);
		1362	$self->instantiate;
		1363	}
		1364
		1365	sub load_header {
		1366	my ($self) = @_;
		1367
		1368	if ($self->load_header_temp) {
		1369	$self->prepare_temp;
		1370	} else {
		1371	$self->load_header_orig
		1372	or return;
		1373	$self->prepare_orig;
		1374	}
		1375
		1376	1
		1377	}
		1378
		1379	sub find;
		1380	sub find {
		1381	my ($path, $origin) = @_;
		1382
		1383	$path = normalise $path, $origin && $origin->path;
		1384
		1385	cf::lock_wait "map_find:$path";
		1386
		1387	$cf::MAP{$path} || do {
		1388	my $guard = cf::lock_acquire "map_find:$path";
		1389	my $map = new_from_path cf::map $path
		1390	or return;
		1391
		1392	$map->{last_save} = $cf::RUNTIME;
		1393
		1394	$map->load_header
		1395	or return;
		1396
		1397	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)
		1398	# doing this can freeze the server in a sync job, obviously
		1399	#$cf::WAIT_FOR_TICK->wait;
		1400	$map->reset;
		1401	undef $guard;
		1402	return find $path;
		1403	}
		1404
		1405	$cf::MAP{$path} = $map
		1406	}
		1407	}
		1408
		1409	sub pre_load { }
		1410	sub post_load { }
		1411
		1412	sub load {
		1413	my ($self) = @_;
		1414
		1415	local $self->{deny_reset} = 1; # loading can take a long time
		1416
		1417	my $path = $self->{path};
		1418	my $guard = cf::lock_acquire "map_load:$path";
		1419
		1420	return if $self->in_memory != cf::MAP_SWAPPED;
		1421
		1422	$self->in_memory (cf::MAP_LOADING);
		1423
		1424	$self->alloc;
		1425
		1426	$self->pre_load;
		1427
		1428	$self->_load_objects ($self->{load_path}, 1)
		1429	or return;
		1430
		1431	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1432	if delete $self->{load_original};
		1433
		1434	if (my $uniq = $self->uniq_path) {
		1435	utf8::encode $uniq;
		1436	if (aio_open $uniq, O_RDONLY, 0) {
		1437	$self->clear_unique_items;
		1438	$self->_load_objects ($uniq, 0);
		1439	}
		1440	}
		1441
		1442	Coro::cede;
		1443
		1444	# now do the right thing for maps
		1445	$self->link_multipart_objects;
		1446
		1447	unless ($self->{deny_activate}) {
		1448	$self->decay_objects;
		1449	$self->fix_auto_apply;
		1450	$self->update_buttons;
		1451	Coro::cede;
		1452	$self->set_darkness_map;
		1453	$self->difficulty ($self->estimate_difficulty)
		1454	unless $self->difficulty;
		1455	Coro::cede;
		1456	$self->activate;
		1457	}
		1458
		1459	$self->post_load;
		1460
		1461	$self->in_memory (cf::MAP_IN_MEMORY);
		1462	}
		1463
		1464	sub customise_for {
		1465	my ($self, $ob) = @_;
		1466
		1467	return find "~" . $ob->name . "/" . $self->{path}
		1468	if $self->per_player;
		1469
		1470	$self
		1471	}
		1472
		1473	# find and load all maps in the 3x3 area around a map
		1474	sub load_diag {
457	my ($msg) = @_;	1475	my ($map) = @_;
458		1476
459	$msg->("reloading...");	1477	my @diag; # diagonal neighbours
460		1478
461	eval {	1479	for (0 .. 3) {
462	# 1. cancel all watchers	1480	my $neigh = $map->tile_path ($_)
463	$_->cancel for Event::all_watchers;	1481	or next;
		1482	$neigh = find $neigh, $map
		1483	or next;
		1484	$neigh->load;
464		1485
465	# 2. unload all extensions	1486	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
466	for (@exts) {	1487	[$neigh->tile_path (($_ + 1) % 4), $neigh];
467	$msg->("unloading <$_>");	1488	}
468	unload_extension $_;
469	}
470		1489
471	# 3. unload all modules loaded from $LIBDIR	1490	for (@diag) {
472	while (my ($k, $v) = each %INC) {	1491	my $neigh = find @$_
473	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	1492	or next;
		1493	$neigh->load;
		1494	}
		1495	}
474		1496
475	$msg->("removing <$k>");	1497	sub find_sync {
476	delete $INC{$k};	1498	my ($path, $origin) = @_;
477		1499
478	$k =~ s/\.pm$//;	1500	cf::sync_job { find $path, $origin }
479	$k =~ s/\//::/g;	1501	}
480		1502
481	if (my $cb = $k->can ("unload_module")) {	1503	sub do_load_sync {
482	$cb->();	1504	my ($map) = @_;
		1505
		1506	cf::sync_job { $map->load };
		1507	}
		1508
		1509	our %MAP_PREFETCH;
		1510	our $MAP_PREFETCHER = undef;
		1511
		1512	sub find_async {
		1513	my ($path, $origin) = @_;
		1514
		1515	$path = normalise $path, $origin && $origin->{path};
		1516
		1517	if (my $map = $cf::MAP{$path}) {
		1518	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1519	}
		1520
		1521	undef $MAP_PREFETCH{$path};
		1522	$MAP_PREFETCHER ||= cf::async {
		1523	while (%MAP_PREFETCH) {
		1524	for my $path (keys %MAP_PREFETCH) {
		1525	my $map = find $path
		1526	or next;
		1527	$map->load;
		1528
		1529	delete $MAP_PREFETCH{$path};
483	}	1530	}
484
485	Symbol::delete_package $k;
486	}
487
488	# 4. get rid of safe::, as good as possible
489	Symbol::delete_package "safe::$_"
490	for qw(cf::object cf::object::player cf::player cf::map cf::party cf::region);
491
492	# 5. remove register_script_function callbacks
493	# TODO
494		1531	}
495	# 6. unload cf.pm "a bit"	1532	undef $MAP_PREFETCHER;
496	delete $INC{"cf.pm"};
497
498	# don't, removes xs symbols, too,
499	# and global variables created in xs
500	#Symbol::delete_package __PACKAGE__;
501
502	# 7. reload cf.pm
503	$msg->("reloading cf.pm");
504	require cf;
505	};	1533	};
506	$msg->($@) if $@;	1534	$MAP_PREFETCHER->prio (6);
507		1535
508	$msg->("reloaded");	1536	()
509	};	1537	}
510		1538
511	sub perl_reload() {	1539	sub save {
512	_perl_reload {	1540	my ($self) = @_;
513	warn $_[0];	1541
514	print "$_[0]\n";	1542	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1543
		1544	$self->{last_save} = $cf::RUNTIME;
		1545
		1546	return unless $self->dirty;
		1547
		1548	my $save = $self->save_path; utf8::encode $save;
		1549	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1550
		1551	$self->{load_path} = $save;
		1552
		1553	return if $self->{deny_save};
		1554
		1555	local $self->{last_access} = $self->last_access;#d#
		1556
		1557	cf::async {
		1558	$_->contr->save for $self->players;
515	};	1559	};
516	}
517		1560
518	register_command "perl-reload", 0, sub {	1561	if ($uniq) {
519	my ($who, $arg) = @_;	1562	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
520		1563	$self->_save_objects ($uniq, cf::IO_UNIQUES);
521	if ($who->flag (FLAG_WIZ)) {
522	_perl_reload {
523	warn $_[0];
524	$who->message ($_[0]);
525	};
526	}
527	};
528
529	#############################################################################
530	# extcmd framework, basically convert ext <msg>
531	# into pkg::->on_extcmd_arg1 (...) while shortcutting a few
532
533	attach_to_players
534	on_extcmd => sub {
535	my ($pl, $buf) = @_;
536
537	my $msg = eval { from_json $buf };
538
539	if (ref $msg) {
540	if (my $cb = $extcmd{$msg->{msgtype}}) {
541	if (my %reply = $cb->[0]->($pl, $msg)) {
542	$pl->ext_reply ($msg->{msgid}, %reply);
543	}
544	}
545	} else {
546	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
547	}
548
549	cf::override;
550	},
551	;
552
553	#############################################################################
554	# load/save/clean perl data associated with a map
555
556	*cf::mapsupport::on_clean = sub {
557	my ($map) = @_;
558
559	my $path = $map->tmpname;
560	defined $path or return;
561
562	unlink "$path.cfperl";
563	};
564
565	*cf::mapsupport::on_swapin =
566	*cf::mapsupport::on_load = sub {
567	my ($map) = @_;
568
569	my $path = $map->tmpname;
570	$path = $map->path unless defined $path;
571
572	open my $fh, "<:raw", "$path.cfperl"
573	or return; # no perl data
574
575	my $data = Storable::thaw do { local $/; <$fh> };
576
577	$data->{version} <= 1
578	or return; # too new
579
580	$map->_set_obs ($data->{obs});
581	};
582
583	*cf::mapsupport::on_swapout = sub {
584	my ($map) = @_;
585
586	my $path = $map->tmpname;
587	$path = $map->path unless defined $path;
588
589	my $obs = $map->_get_obs;
590
591	if (defined $obs) {
592	open my $fh, ">:raw", "$path.cfperl"
593	or die "$path.cfperl: $!";
594
595	stat $path;
596
597	print $fh Storable::nfreeze {
598	size => (stat _)[7],
599	time => (stat _)[9],
600	version => 1,
601	obs => $obs,
602	};
603
604	chmod SAVE_MODE, "$path.cfperl"; # very racy, but cf-compatible *g*
605	} else {	1564	} else {
606	unlink "$path.cfperl";	1565	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
607	}
608	};
609
610	attach_to_maps prio => -10000, package => cf::mapsupport::;
611
612	#############################################################################
613	# load/save perl data associated with player->ob objects
614
615	sub all_objects(@) {
616	@_, map all_objects ($_->inv), @_
617	}
618
619	attach_to_players
620	on_load => sub {
621	my ($pl, $path) = @_;
622
623	for my $o (all_objects $pl->ob) {
624	if (my $value = $o->get_ob_key_value ("_perl_data")) {
625	$o->set_ob_key_value ("_perl_data");
626
627	%$o = %{ Storable::thaw pack "H*", $value };
628	}
629	}
630	},	1566	}
631	on_save => sub {	1567	}
632	my ($pl, $path) = @_;
633		1568
634	$_->set_ob_key_value (_perl_data => unpack "H*", Storable::nfreeze $_)	1569	sub swap_out {
635	for grep %$_, all_objects $pl->ob;	1570	my ($self) = @_;
		1571
		1572	# save first because save cedes
		1573	$self->save;
		1574
		1575	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1576
		1577	return if $self->players;
		1578	return if $self->in_memory != cf::MAP_IN_MEMORY;
		1579	return if $self->{deny_save};
		1580
		1581	$self->clear;
		1582	$self->in_memory (cf::MAP_SWAPPED);
		1583	}
		1584
		1585	sub reset_at {
		1586	my ($self) = @_;
		1587
		1588	# TODO: safety, remove and allow resettable per-player maps
		1589	return 1e99 if $self->isa ("ext::map_per_player");#d#
		1590	return 1e99 if $self->{deny_reset};
		1591
		1592	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		1593	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
		1594
		1595	$time + $to
		1596	}
		1597
		1598	sub should_reset {
		1599	my ($self) = @_;
		1600
		1601	$self->reset_at <= $cf::RUNTIME
		1602	}
		1603
		1604	sub reset {
		1605	my ($self) = @_;
		1606
		1607	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1608
		1609	return if $self->players;
		1610	return if $self->isa ("ext::map_per_player");#d#
		1611
		1612	warn "resetting map ", $self->path;#d#
		1613
		1614	delete $cf::MAP{$self->path};
		1615
		1616	$self->in_memory (cf::MAP_SWAPPED);
		1617	$self->clear;
		1618
		1619	$_->clear_links_to ($self) for values %cf::MAP;
		1620
		1621	$self->unlink_save;
		1622	$self->destroy;
		1623	}
		1624
		1625	my $nuke_counter = "aaaa";
		1626
		1627	sub nuke {
		1628	my ($self) = @_;
		1629
		1630	delete $cf::MAP{$self->path};
		1631
		1632	$self->unlink_save;
		1633
		1634	bless $self, "cf::map";
		1635	delete $self->{deny_reset};
		1636	$self->{deny_save} = 1;
		1637	$self->reset_timeout (1);
		1638	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1639
		1640	$cf::MAP{$self->path} = $self;
		1641
		1642	$self->reset; # polite request, might not happen
		1643	}
		1644
		1645	=item cf::map::unique_maps
		1646
		1647	Returns an arrayref of paths of all shared maps that have
		1648	instantiated unique items. May block.
		1649
		1650	=cut
		1651
		1652	sub unique_maps() {
		1653	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir
		1654	or return;
		1655
		1656	my @paths;
		1657
		1658	for (@$files) {
		1659	utf8::decode $_;
		1660	next if /\.pst$/;
		1661	next unless /^$PATH_SEP/o;
		1662
		1663	push @paths, cf::map::normalise $_;
636	},	1664	}
637	;
638		1665
639	#############################################################################	1666	\@paths
640	# core extensions - in perl
641
642	=item cf::player::exists $login
643
644	Returns true when the given account exists.
645
646	=cut
647
648	sub cf::player::exists($) {
649	cf::player::find $_[0]
650	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
651	}	1667	}
652		1668
		1669	package cf;
		1670
		1671	=back
		1672
		1673	=head3 cf::object
		1674
		1675	=cut
		1676
		1677	package cf::object;
		1678
		1679	=over 4
		1680
		1681	=item $ob->inv_recursive
		1682
		1683	Returns the inventory of the object _and_ their inventories, recursively.
		1684
		1685	=cut
		1686
		1687	sub inv_recursive_;
		1688	sub inv_recursive_ {
		1689	map { $_, inv_recursive_ $_->inv } @_
		1690	}
		1691
		1692	sub inv_recursive {
		1693	inv_recursive_ inv $_[0]
		1694	}
		1695
		1696	package cf;
		1697
		1698	=back
		1699
		1700	=head3 cf::object::player
		1701
		1702	=over 4
		1703
653	=item $player->reply ($npc, $msg[, $flags])	1704	=item $player_object->reply ($npc, $msg[, $flags])
654		1705
655	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	1706	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
656	can be C<undef>. Does the right thing when the player is currently in a	1707	can be C<undef>. Does the right thing when the player is currently in a
657	dialogue with the given NPC character.	1708	dialogue with the given NPC character.
658		1709
659	=cut	1710	=cut
660		1711
661	# rough implementation of a future "reply" method that works	1712	# rough implementation of a future "reply" method that works
662	# with dialog boxes.	1713	# with dialog boxes.
		1714	#TODO: the first argument must go, split into a $npc->reply_to ( method
663	sub cf::object::player::reply($$$;$) {	1715	sub cf::object::player::reply($$$;$) {
664	my ($self, $npc, $msg, $flags) = @_;	1716	my ($self, $npc, $msg, $flags) = @_;
665		1717
666	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	1718	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
667		1719
…		…
671	$msg = $npc->name . " says: $msg" if $npc;	1723	$msg = $npc->name . " says: $msg" if $npc;
672	$self->message ($msg, $flags);	1724	$self->message ($msg, $flags);
673	}	1725	}
674	}	1726	}
675		1727
676	=item $player->ext_reply ($msgid, $msgtype, %msg)	1728	=item $player_object->may ("access")
677		1729
678	Sends an ext reply to the player.	1730	Returns wether the given player is authorized to access resource "access"
		1731	(e.g. "command_wizcast").
679		1732
680	=cut	1733	=cut
681		1734
682	sub cf::player::ext_reply($$$%) {	1735	sub cf::object::player::may {
		1736	my ($self, $access) = @_;
		1737
		1738	$self->flag (cf::FLAG_WIZ) ||
		1739	(ref $cf::CFG{"may_$access"}
		1740	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
		1741	: $cf::CFG{"may_$access"})
		1742	}
		1743
		1744	=item $player_object->enter_link
		1745
		1746	Freezes the player and moves him/her to a special map (C<{link}>).
		1747
		1748	The player should be reasonably safe there for short amounts of time. You
		1749	I<MUST> call C<leave_link> as soon as possible, though.
		1750
		1751	Will never block.
		1752
		1753	=item $player_object->leave_link ($map, $x, $y)
		1754
		1755	Moves the player out of the special C<{link}> map onto the specified
		1756	map. If the map is not valid (or omitted), the player will be moved back
		1757	to the location he/she was before the call to C<enter_link>, or, if that
		1758	fails, to the emergency map position.
		1759
		1760	Might block.
		1761
		1762	=cut
		1763
		1764	sub link_map {
		1765	unless ($LINK_MAP) {
		1766	$LINK_MAP = cf::map::find "{link}"
		1767	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		1768	$LINK_MAP->load;
		1769	}
		1770
		1771	$LINK_MAP
		1772	}
		1773
		1774	sub cf::object::player::enter_link {
		1775	my ($self) = @_;
		1776
		1777	$self->deactivate_recursive;
		1778
		1779	return if UNIVERSAL::isa $self->map, "ext::map_link";
		1780
		1781	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
		1782	if $self->map;
		1783
		1784	$self->enter_map ($LINK_MAP || link_map, 10, 10);
		1785	}
		1786
		1787	sub cf::object::player::leave_link {
		1788	my ($self, $map, $x, $y) = @_;
		1789
		1790	my $link_pos = delete $self->{_link_pos};
		1791
		1792	unless ($map) {
		1793	# restore original map position
		1794	($map, $x, $y) = @{ $link_pos || [] };
		1795	$map = cf::map::find $map;
		1796
		1797	unless ($map) {
		1798	($map, $x, $y) = @$EMERGENCY_POSITION;
		1799	$map = cf::map::find $map
		1800	or die "FATAL: cannot load emergency map\n";
		1801	}
		1802	}
		1803
		1804	($x, $y) = (-1, -1)
		1805	unless (defined $x) && (defined $y);
		1806
		1807	# use -1 or undef as default coordinates, not 0, 0
		1808	($x, $y) = ($map->enter_x, $map->enter_y)
		1809	if $x <=0 && $y <= 0;
		1810
		1811	$map->load;
		1812	$map->load_diag;
		1813
		1814	return unless $self->contr->active;
		1815	$self->activate_recursive;
		1816	$self->enter_map ($map, $x, $y);
		1817	}
		1818
		1819	cf::player->attach (
		1820	on_logout => sub {
		1821	my ($pl) = @_;
		1822
		1823	# abort map switching before logout
		1824	if ($pl->ob->{_link_pos}) {
		1825	cf::sync_job {
		1826	$pl->ob->leave_link
		1827	};
		1828	}
		1829	},
		1830	on_login => sub {
		1831	my ($pl) = @_;
		1832
		1833	# try to abort aborted map switching on player login :)
		1834	# should happen only on crashes
		1835	if ($pl->ob->{_link_pos}) {
		1836	$pl->ob->enter_link;
		1837	(async {
		1838	# we need this sleep as the login has a concurrent enter_exit running
		1839	# and this sleep increases chances of the player not ending up in scorn
		1840	$pl->ob->reply (undef,
		1841	"There was an internal problem at your last logout, "
		1842	. "the server will try to bring you to your intended destination in a second.",
		1843	cf::NDI_RED);
		1844	Coro::Timer::sleep 1;
		1845	$pl->ob->leave_link;
		1846	})->prio (2);
		1847	}
		1848	},
		1849	);
		1850
		1851	=item $player_object->goto ($path, $x, $y)
		1852
		1853	=cut
		1854
		1855	sub cf::object::player::goto {
		1856	my ($self, $path, $x, $y) = @_;
		1857
		1858	$self->enter_link;
		1859
		1860	(async {
		1861	my $map = eval {
		1862	my $map = cf::map::find $path;
		1863	$map = $map->customise_for ($self) if $map;
		1864	$map
		1865	} or
		1866	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		1867
		1868	$self->leave_link ($map, $x, $y);
		1869	})->prio (1);
		1870	}
		1871
		1872	=item $player_object->enter_exit ($exit_object)
		1873
		1874	=cut
		1875
		1876	sub parse_random_map_params {
		1877	my ($spec) = @_;
		1878
		1879	my $rmp = { # defaults
		1880	xsize => (cf::rndm 15, 40),
		1881	ysize => (cf::rndm 15, 40),
		1882	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		1883	#layout => string,
		1884	};
		1885
		1886	for (split /\n/, $spec) {
		1887	my ($k, $v) = split /\s+/, $_, 2;
		1888
		1889	$rmp->{lc $k} = $v if (length $k) && (length $v);
		1890	}
		1891
		1892	$rmp
		1893	}
		1894
		1895	sub prepare_random_map {
		1896	my ($exit) = @_;
		1897
		1898	my $guard = cf::lock_acquire "exit_prepare:$exit";
		1899
		1900	# all this does is basically replace the /! path by
		1901	# a new random map path (?random/...) with a seed
		1902	# that depends on the exit object
		1903
		1904	my $rmp = parse_random_map_params $exit->msg;
		1905
		1906	if ($exit->map) {
		1907	$rmp->{region} = $exit->region->name;
		1908	$rmp->{origin_map} = $exit->map->path;
		1909	$rmp->{origin_x} = $exit->x;
		1910	$rmp->{origin_y} = $exit->y;
		1911	}
		1912
		1913	$rmp->{random_seed} ||= $exit->random_seed;
		1914
		1915	my $data = cf::to_json $rmp;
		1916	my $md5 = Digest::MD5::md5_hex $data;
		1917	my $meta = "$cf::RANDOM_MAPS/$md5.meta";
		1918
		1919	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
		1920	aio_write $fh, 0, (length $data), $data, 0;
		1921	undef $fh;
		1922	aio_rename "$meta~", $meta;
		1923
		1924	$exit->slaying ("?random/$md5");
		1925	$exit->msg (undef);
		1926	}
		1927	}
		1928
		1929	sub cf::object::player::enter_exit {
683	my ($self, $id, %msg) = @_;	1930	my ($self, $exit) = @_;
684		1931
685	$msg{msgid} = $id;	1932	return unless $self->type == cf::PLAYER;
686		1933
687	$self->send ("ext " . to_json \%msg);	1934	if ($exit->slaying eq "/!") {
688	}	1935	#TODO: this should de-fi-ni-te-ly not be a sync-job
		1936	cf::sync_job { prepare_random_map $exit };
		1937	}
689		1938
690	#############################################################################	1939	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
691	# map scripting support	1940	my $hp = $exit->stats->hp;
		1941	my $sp = $exit->stats->sp;
		1942
		1943	$self->enter_link;
		1944
		1945	(async {
		1946	$self->deactivate_recursive; # just to be sure
		1947	unless (eval {
		1948	$self->goto ($slaying, $hp, $sp);
		1949
		1950	1;
		1951	}) {
		1952	$self->message ("Something went wrong deep within the crossfire server. "
		1953	. "I'll try to bring you back to the map you were before. "
		1954	. "Please report this to the dungeon master!",
		1955	cf::NDI_UNIQUE | cf::NDI_RED);
		1956
		1957	warn "ERROR in enter_exit: $@";
		1958	$self->leave_link;
		1959	}
		1960	})->prio (1);
		1961	}
		1962
		1963	=head3 cf::client
		1964
		1965	=over 4
		1966
		1967	=item $client->send_drawinfo ($text, $flags)
		1968
		1969	Sends a drawinfo packet to the client. Circumvents output buffering so
		1970	should not be used under normal circumstances.
		1971
		1972	=cut
		1973
		1974	sub cf::client::send_drawinfo {
		1975	my ($self, $text, $flags) = @_;
		1976
		1977	utf8::encode $text;
		1978	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);
		1979	}
		1980
		1981
		1982	=item $success = $client->query ($flags, "text", \&cb)
		1983
		1984	Queues a query to the client, calling the given callback with
		1985	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
		1986	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
		1987
		1988	Queries can fail, so check the return code. Or don't, as queries will become
		1989	reliable at some point in the future.
		1990
		1991	=cut
		1992
		1993	sub cf::client::query {
		1994	my ($self, $flags, $text, $cb) = @_;
		1995
		1996	return unless $self->state == ST_PLAYING
		1997	|| $self->state == ST_SETUP
		1998	|| $self->state == ST_CUSTOM;
		1999
		2000	$self->state (ST_CUSTOM);
		2001
		2002	utf8::encode $text;
		2003	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
		2004
		2005	$self->send_packet ($self->{query_queue}[0][0])
		2006	if @{ $self->{query_queue} } == 1;
		2007	}
		2008
		2009	cf::client->attach (
		2010	on_reply => sub {
		2011	my ($ns, $msg) = @_;
		2012
		2013	# this weird shuffling is so that direct followup queries
		2014	# get handled first
		2015	my $queue = delete $ns->{query_queue}
		2016	or return; # be conservative, not sure how that can happen, but we saw a crash here
		2017
		2018	(shift @$queue)->[1]->($msg);
		2019	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
		2020
		2021	push @{ $ns->{query_queue} }, @$queue;
		2022
		2023	if (@{ $ns->{query_queue} } == @$queue) {
		2024	if (@$queue) {
		2025	$ns->send_packet ($ns->{query_queue}[0][0]);
		2026	} else {
		2027	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
		2028	}
		2029	}
		2030	},
		2031	);
		2032
		2033	=item $client->async (\&cb)
		2034
		2035	Create a new coroutine, running the specified callback. The coroutine will
		2036	be automatically cancelled when the client gets destroyed (e.g. on logout,
		2037	or loss of connection).
		2038
		2039	=cut
		2040
		2041	sub cf::client::async {
		2042	my ($self, $cb) = @_;
		2043
		2044	my $coro = &Coro::async ($cb);
		2045
		2046	$coro->on_destroy (sub {
		2047	delete $self->{_coro}{$coro+0};
		2048	});
		2049
		2050	$self->{_coro}{$coro+0} = $coro;
		2051
		2052	$coro
		2053	}
		2054
		2055	cf::client->attach (
		2056	on_destroy => sub {
		2057	my ($ns) = @_;
		2058
		2059	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
		2060	},
		2061	);
		2062
		2063	=back
		2064
		2065
		2066	=head2 SAFE SCRIPTING
		2067
		2068	Functions that provide a safe environment to compile and execute
		2069	snippets of perl code without them endangering the safety of the server
		2070	itself. Looping constructs, I/O operators and other built-in functionality
		2071	is not available in the safe scripting environment, and the number of
		2072	functions and methods that can be called is greatly reduced.
		2073
		2074	=cut
692		2075
693	our $safe = new Safe "safe";	2076	our $safe = new Safe "safe";
694	our $safe_hole = new Safe::Hole;	2077	our $safe_hole = new Safe::Hole;
695		2078
696	$SIG{FPE} = 'IGNORE';	2079	$SIG{FPE} = 'IGNORE';
697		2080
698	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	2081	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));
699		2082
700	# here we export the classes and methods available to script code	2083	# here we export the classes and methods available to script code
701		2084
		2085	=pod
		2086
		2087	The following fucntions and emthods are available within a safe environment:
		2088
		2089	cf::object contr pay_amount pay_player map
		2090	cf::object::player player
		2091	cf::player peaceful
		2092	cf::map trigger
		2093
		2094	=cut
		2095
702	for (	2096	for (
703	["cf::object" => qw(contr pay_amount pay_player)],	2097	["cf::object" => qw(contr pay_amount pay_player map)],
704	["cf::object::player" => qw(player)],	2098	["cf::object::player" => qw(player)],
705	["cf::player" => qw(peaceful)],	2099	["cf::player" => qw(peaceful)],
		2100	["cf::map" => qw(trigger)],
706	) {	2101	) {
707	no strict 'refs';	2102	no strict 'refs';
708	my ($pkg, @funs) = @$_;	2103	my ($pkg, @funs) = @$_;
709	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	2104	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
710	for @funs;	2105	for @funs;
711	}	2106	}
		2107
		2108	=over 4
		2109
		2110	=item @retval = safe_eval $code, [var => value, ...]
		2111
		2112	Compiled and executes the given perl code snippet. additional var/value
		2113	pairs result in temporary local (my) scalar variables of the given name
		2114	that are available in the code snippet. Example:
		2115
		2116	my $five = safe_eval '$first + $second', first => 1, second => 4;
		2117
		2118	=cut
712		2119
713	sub safe_eval($;@) {	2120	sub safe_eval($;@) {
714	my ($code, %vars) = @_;	2121	my ($code, %vars) = @_;
715		2122
716	my $qcode = $code;	2123	my $qcode = $code;
…		…
739	}	2146	}
740		2147
741	wantarray ? @res : $res[0]	2148	wantarray ? @res : $res[0]
742	}	2149	}
743		2150
		2151	=item cf::register_script_function $function => $cb
		2152
		2153	Register a function that can be called from within map/npc scripts. The
		2154	function should be reasonably secure and should be put into a package name
		2155	like the extension.
		2156
		2157	Example: register a function that gets called whenever a map script calls
		2158	C<rent::overview>, as used by the C<rent> extension.
		2159
		2160	cf::register_script_function "rent::overview" => sub {
		2161	...
		2162	};
		2163
		2164	=cut
		2165
744	sub register_script_function {	2166	sub register_script_function {
745	my ($fun, $cb) = @_;	2167	my ($fun, $cb) = @_;
746		2168
747	no strict 'refs';	2169	no strict 'refs';
748	*{"safe::$fun"} = $safe_hole->wrap ($cb);	2170	*{"safe::$fun"} = $safe_hole->wrap ($cb);
749	}	2171	}
750		2172
		2173	=back
		2174
		2175	=cut
		2176
751	#############################################################################	2177	#############################################################################
752	# the server's main()	2178
		2179	=head2 EXTENSION DATABASE SUPPORT
		2180
		2181	Crossfire maintains a very simple database for extension use. It can
		2182	currently store anything that can be serialised using Storable, which
		2183	excludes objects.
		2184
		2185	The parameter C<$family> should best start with the name of the extension
		2186	using it, it should be unique.
		2187
		2188	=over 4
		2189
		2190	=item $value = cf::db_get $family => $key
		2191
		2192	Returns a single value from the database.
		2193
		2194	=item cf::db_put $family => $key => $value
		2195
		2196	Stores the given C<$value> in the family.
		2197
		2198	=cut
		2199
		2200	our $DB;
		2201
		2202	sub db_load() {
		2203	unless ($DB) {
		2204	$DB = BDB::db_create $DB_ENV;
		2205
		2206	cf::sync_job {
		2207	eval {
		2208	$DB->set_flags (BDB::CHKSUM);
		2209
		2210	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		2211	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		2212	cf::cleanup "db_open(db): $!" if $!;
		2213	};
		2214	cf::cleanup "db_open(db): $@" if $@;
		2215	};
		2216
		2217	my $path = cf::localdir . "/database.pst";
		2218	if (stat $path) {
		2219	cf::sync_job {
		2220	my $pst = Storable::retrieve $path;
		2221
		2222	cf::db_put (board => data => $pst->{board});
		2223	cf::db_put (guildrules => data => $pst->{guildrules});
		2224	cf::db_put (rent => balance => $pst->{rent}{balance});
		2225	BDB::db_env_txn_checkpoint $DB_ENV;
		2226
		2227	unlink $path;
		2228	};
		2229	}
		2230	}
		2231	}
		2232
		2233	sub db_get($$) {
		2234	my $key = "$_[0]/$_[1]";
		2235
		2236	cf::sync_job {
		2237	BDB::db_get $DB, undef, $key, my $data;
		2238
		2239	$! ? ()
		2240	: Compress::LZF::sthaw $data
		2241	}
		2242	}
		2243
		2244	sub db_put($$$) {
		2245	BDB::dbreq_pri 4;
		2246	BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
		2247	}
		2248
		2249	#############################################################################
		2250	# the server's init and main functions
		2251
		2252	sub load_resources {
		2253	load_regions sprintf "%s/%s/regions", cf::datadir, cf::mapdir
		2254	or die "unable to load regions file\n";#d#
		2255	}
		2256
		2257	sub cfg_load {
		2258	open my $fh, "<:utf8", cf::confdir . "/config"
		2259	or return;
		2260
		2261	local $/;
		2262	*CFG = YAML::Syck::Load <$fh>;
		2263
		2264	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		2265
		2266	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2267	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2268
		2269	if (exists $CFG{mlockall}) {
		2270	eval {
		2271	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2272	and die "WARNING: m(un)lockall failed: $!\n";
		2273	};
		2274	warn $@ if $@;
		2275	}
		2276	}
		2277
		2278	sub init {
		2279	load_resources;
		2280	}
753		2281
754	sub main {	2282	sub main {
		2283	# we must not ever block the main coroutine
		2284	local $Coro::idle = sub {
		2285	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		2286	(async {
		2287	Event::one_event;
		2288	})->prio (Coro::PRIO_MAX);
		2289	};
		2290
		2291	cfg_load;
		2292	db_load;
		2293	load_extensions;
		2294
		2295	$TICK_WATCHER->start;
755	Event::loop;	2296	Event::loop;
756	}	2297	}
757		2298
758	#############################################################################	2299	#############################################################################
759	# initialisation	2300	# initialisation and cleanup
760		2301
761	register "<global>", __PACKAGE__;	2302	# install some emergency cleanup handlers
		2303	BEGIN {
		2304	for my $signal (qw(INT HUP TERM)) {
		2305	Event->signal (
		2306	reentrant => 0,
		2307	data => WF_AUTOCANCEL,
		2308	signal => $signal,
		2309	prio => 0,
		2310	cb => sub {
		2311	cf::cleanup "SIG$signal";
		2312	},
		2313	);
		2314	}
		2315	}
		2316
		2317	sub emergency_save() {
		2318	my $freeze_guard = cf::freeze_mainloop;
		2319
		2320	warn "enter emergency perl save\n";
		2321
		2322	cf::sync_job {
		2323	# use a peculiar iteration method to avoid tripping on perl
		2324	# refcount bugs in for. also avoids problems with players
		2325	# and maps saved/destroyed asynchronously.
		2326	warn "begin emergency player save\n";
		2327	for my $login (keys %cf::PLAYER) {
		2328	my $pl = $cf::PLAYER{$login} or next;
		2329	$pl->valid or next;
		2330	$pl->save;
		2331	}
		2332	warn "end emergency player save\n";
		2333
		2334	warn "begin emergency map save\n";
		2335	for my $path (keys %cf::MAP) {
		2336	my $map = $cf::MAP{$path} or next;
		2337	$map->valid or next;
		2338	$map->save;
		2339	}
		2340	warn "end emergency map save\n";
		2341
		2342	warn "begin emergency database checkpoint\n";
		2343	BDB::db_env_txn_checkpoint $DB_ENV;
		2344	warn "end emergency database checkpoint\n";
		2345	};
		2346
		2347	warn "leave emergency perl save\n";
		2348	}
		2349
		2350	sub reload() {
		2351	# can/must only be called in main
		2352	if ($Coro::current != $Coro::main) {
		2353	warn "can only reload from main coroutine";
		2354	return;
		2355	}
		2356
		2357	warn "reloading...";
		2358
		2359	warn "cancelling server ticker";
		2360	$TICK_WATCHER->cancel;
		2361
		2362	cf::emergency_save;
		2363
		2364	eval {
		2365	# if anything goes wrong in here, we should simply crash as we already saved
		2366
		2367	warn "cancelling all WF_AUTOCANCEL watchers";
		2368	for (Event::all_watchers) {
		2369	$_->cancel if $_->data & WF_AUTOCANCEL;
		2370	}
		2371
		2372	warn "syncing database to disk";
		2373	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		2374
		2375	warn "flushing outstanding aio requests";
		2376	for (;;) {
		2377	BDB::flush;
		2378	IO::AIO::flush;
		2379	Coro::cede;
		2380	last unless IO::AIO::nreqs || BDB::nreqs;
		2381	warn "iterate...";
		2382	}
		2383
		2384	warn "cancelling all extension coros";
		2385	$_->cancel for values %EXT_CORO;
		2386	%EXT_CORO = ();
		2387
		2388	warn "removing commands";
		2389	%COMMAND = ();
		2390
		2391	warn "removing ext commands";
		2392	%EXTCMD = ();
		2393
		2394	warn "unloading/nuking all extensions";
		2395	for my $pkg (@EXTS) {
		2396	warn "... unloading $pkg";
		2397
		2398	if (my $cb = $pkg->can ("unload")) {
		2399	eval {
		2400	$cb->($pkg);
		2401	1
		2402	} or warn "$pkg unloaded, but with errors: $@";
		2403	}
		2404
		2405	warn "... nuking $pkg";
		2406	Symbol::delete_package $pkg;
		2407	}
		2408
		2409	warn "unloading all perl modules loaded from $LIBDIR";
		2410	while (my ($k, $v) = each %INC) {
		2411	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		2412
		2413	warn "... unloading $k";
		2414	delete $INC{$k};
		2415
		2416	$k =~ s/\.pm$//;
		2417	$k =~ s/\//::/g;
		2418
		2419	if (my $cb = $k->can ("unload_module")) {
		2420	$cb->();
		2421	}
		2422
		2423	Symbol::delete_package $k;
		2424	}
		2425
		2426	warn "getting rid of safe::, as good as possible";
		2427	Symbol::delete_package "safe::$_"
		2428	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
		2429
		2430	warn "unloading cf.pm \"a bit\"";
		2431	delete $INC{"cf.pm"};
		2432
		2433	# don't, removes xs symbols, too,
		2434	# and global variables created in xs
		2435	#Symbol::delete_package __PACKAGE__;
		2436
		2437	warn "unload completed, starting to reload now";
		2438
		2439	warn "reloading cf.pm";
		2440	require cf;
		2441	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
		2442
		2443	warn "loading config and database again";
		2444	cf::cfg_load;
		2445	cf::db_load;
		2446
		2447	warn "loading extensions";
		2448	cf::load_extensions;
		2449
		2450	warn "reattaching attachments to objects/players";
		2451	_global_reattach;
		2452	warn "reattaching attachments to maps";
		2453	reattach $_ for values %MAP;
		2454
		2455	warn "loading reloadable resources";
		2456	load_resources;
		2457
		2458	warn "restarting server ticker";
		2459
		2460	$TICK_WATCHER->start;
		2461	};
		2462
		2463	if ($@) {
		2464	warn $@;
		2465	warn "error while reloading, exiting.";
		2466	exit 1;
		2467	}
		2468
		2469	warn "reloaded";
		2470	};
		2471
		2472	our $RELOAD_WATCHER; # used only during reload
		2473
		2474	register_command "reload" => sub {
		2475	my ($who, $arg) = @_;
		2476
		2477	if ($who->flag (FLAG_WIZ)) {
		2478	$who->message ("reloading server.");
		2479
		2480	# doing reload synchronously and two reloads happen back-to-back,
		2481	# coro crashes during coro_state_free->destroy here.
		2482
		2483	$RELOAD_WATCHER ||= Event->timer (
		2484	reentrant => 0,
		2485	after => 0,
		2486	data => WF_AUTOCANCEL,
		2487	cb => sub {
		2488	reload;
		2489	undef $RELOAD_WATCHER;
		2490	},
		2491	);
		2492	}
		2493	};
762		2494
763	unshift @INC, $LIBDIR;	2495	unshift @INC, $LIBDIR;
764		2496
765	load_extensions;	2497	my $bug_warning = 0;
766		2498
767	$TICK_WATCHER = Event->timer (	2499	$TICK_WATCHER = Event->timer (
		2500	reentrant => 0,
		2501	parked => 1,
768	prio => 1,	2502	prio => 0,
769	at => $NEXT_TICK || 1,	2503	at => $NEXT_TICK || $TICK,
		2504	data => WF_AUTOCANCEL,
770	cb => sub {	2505	cb => sub {
		2506	if ($Coro::current != $Coro::main) {
		2507	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2508	unless ++$bug_warning > 10;
		2509	return;
		2510	}
		2511
		2512	$NOW = Event::time;
		2513
771	cf::server_tick; # one server iteration	2514	cf::server_tick; # one server iteration
772		2515	$RUNTIME += $TICK;
773	my $NOW = Event::time;
774	$NEXT_TICK += $TICK;	2516	$NEXT_TICK += $TICK;
775		2517
		2518	$WAIT_FOR_TICK->broadcast;
		2519	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
		2520
		2521	Event::sweep;
		2522	Coro::cede_notself;
		2523
		2524	# my $AFTER = Event::time;
		2525	# warn $AFTER - $NOW;#d#
		2526
776	# if we are delayed by four ticks, skip them all	2527	# if we are delayed by four ticks or more, skip them all
777	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;	2528	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
778		2529
779	$TICK_WATCHER->at ($NEXT_TICK);	2530	$TICK_WATCHER->at ($NEXT_TICK);
780	$TICK_WATCHER->start;	2531	$TICK_WATCHER->start;
781	},	2532	},
782	);	2533	);
783		2534
		2535	{
		2536	BDB::max_poll_time $TICK * 0.1;
		2537	$BDB_POLL_WATCHER = Event->io (
		2538	reentrant => 0,
		2539	fd => BDB::poll_fileno,
		2540	poll => 'r',
		2541	prio => 0,
		2542	data => WF_AUTOCANCEL,
		2543	cb => \&BDB::poll_cb,
		2544	);
		2545	BDB::min_parallel 8;
		2546
		2547	BDB::set_sync_prepare {
		2548	my $status;
		2549	my $current = $Coro::current;
		2550	(
		2551	sub {
		2552	$status = $!;
		2553	$current->ready; undef $current;
		2554	},
		2555	sub {
		2556	Coro::schedule while defined $current;
		2557	$! = $status;
		2558	},
		2559	)
		2560	};
		2561
		2562	unless ($DB_ENV) {
		2563	$DB_ENV = BDB::db_env_create;
		2564
		2565	cf::sync_job {
		2566	eval {
		2567	BDB::db_env_open
		2568	$DB_ENV,
		2569	$BDB_ENV_DIR,
		2570	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		2571	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		2572	0666;
		2573
		2574	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;
		2575
		2576	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		2577	$DB_ENV->set_lk_detect;
		2578	};
		2579
		2580	cf::cleanup "db_env_open(db): $@" if $@;
		2581	};
		2582	}
		2583	}
		2584
		2585	{
		2586	IO::AIO::min_parallel 8;
		2587
		2588	undef $Coro::AIO::WATCHER;
		2589	IO::AIO::max_poll_time $TICK * 0.1;
		2590	$AIO_POLL_WATCHER = Event->io (
		2591	reentrant => 0,
		2592	fd => IO::AIO::poll_fileno,
		2593	poll => 'r',
		2594	prio => 6,
		2595	data => WF_AUTOCANCEL,
		2596	cb => \&IO::AIO::poll_cb,
		2597	);
		2598	}
		2599
		2600	$WRITE_RUNTIME_WATCHER = Event->timer (
		2601	reentrant => 0,
		2602	data => WF_AUTOCANCEL,
		2603	after => 1,
		2604	interval => 10,
		2605	prio => 6, # keep it lowest so it acts like a watchdog
		2606	cb => Coro::unblock_sub {
		2607	write_runtime
		2608	or warn "ERROR: unable to write runtime file: $!";
		2609	},
		2610	);
		2611
		2612	END { cf::emergency_save }
		2613
784	1	2614	1
785		2615

Diff Legend

–	Removed lines
+	Added lines
<	Changed lines
>	Changed lines