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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.151 by root, Mon Jan 8 20:59:15 2007 UTC vs.
Revision 1.278 by root, Mon Jun 11 21:38:14 2007 UTC

…		…
3	use utf8;	3	use utf8;
4	use strict;	4	use strict;
5		5
6	use Symbol;	6	use Symbol;
7	use List::Util;	7	use List::Util;
		8	use Socket;
8	use Storable;	9	use Storable;
		10	use Event;
9	use Opcode;	11	use Opcode;
10	use Safe;	12	use Safe;
11	use Safe::Hole;	13	use Safe::Hole;
12		14
13	use Coro 3.3 ();	15	use Coro 3.61 ();
		16	use Coro::State;
		17	use Coro::Handle;
14	use Coro::Event;	18	use Coro::Event;
15	use Coro::Timer;	19	use Coro::Timer;
16	use Coro::Signal;	20	use Coro::Signal;
17	use Coro::Semaphore;	21	use Coro::Semaphore;
18	use Coro::AIO;	22	use Coro::AIO;
		23	use Coro::Storable;
19		24
		25	use BDB ();
		26	use Data::Dumper;
20	use Digest::MD5;	27	use Digest::MD5;
21	use Fcntl;	28	use Fcntl;
		29	use YAML::Syck ();
22	use IO::AIO 2.32 ();	30	use IO::AIO 2.32 ();
23	use YAML::Syck ();
24	use Time::HiRes;	31	use Time::HiRes;
		32	use Compress::LZF;
25		33
		34	# configure various modules to our taste
		35	#
		36	$Storable::canonical = 1; # reduce rsync transfers
		37	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		38	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		39
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	40	$Event::Eval = 1; # no idea why this is required, but it is
27		41
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	42	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
29	$YAML::Syck::ImplicitUnicode = 1;	43	$YAML::Syck::ImplicitUnicode = 1;
30		44
31	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority	45	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
32		46
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	47	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34		48
35	our %COMMAND = ();	49	our %COMMAND = ();
36	our %COMMAND_TIME = ();	50	our %COMMAND_TIME = ();
		51
		52	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	53	our %EXTCMD = ();
		54	our %EXT_CORO = (); # coroutines bound to extensions
		55	our %EXT_MAP = (); # pluggable maps
38		56
		57	our $RELOAD; # number of reloads so far
39	our @EVENT;	58	our @EVENT;
40	our $LIBDIR = datadir . "/ext";
41		59
42	our $TICK = MAX_TIME * 1e-6;	60	our $CONFDIR = confdir;
		61	our $DATADIR = datadir;
		62	our $LIBDIR = "$DATADIR/ext";
		63	our $PODDIR = "$DATADIR/pod";
		64	our $MAPDIR = "$DATADIR/" . mapdir;
		65	our $LOCALDIR = localdir;
		66	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		67	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		68	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		69	our $RANDOMDIR = "$LOCALDIR/random";
		70	our $BDBDIR = "$LOCALDIR/db";
		71
		72	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
43	our $TICK_WATCHER;	73	our $TICK_WATCHER;
		74	our $AIO_POLL_WATCHER;
		75	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	76	our $NEXT_TICK;
45	our $NOW;	77	our $NOW;
		78	our $USE_FSYNC = 1; # use fsync to write maps - default off
		79
		80	our $BDB_POLL_WATCHER;
		81	our $DB_ENV;
46		82
47	our %CFG;	83	our %CFG;
48		84
49	our $UPTIME; $UPTIME ||= time;	85	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	86	our $RUNTIME;
51		87
52	our %PLAYER; # all users	88	our %PLAYER; # all users
53	our %MAP; # all maps	89	our %MAP; # all maps
54	our $LINK_MAP; # the special {link} map	90	our $LINK_MAP; # the special {link} map, which is always available
55	our $RANDOM_MAPS = cf::localdir . "/random";	91
56	our %EXT_CORO; # coroutines bound to extensions	92	# used to convert map paths into valid unix filenames by replacing / by ∕
		93	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		94
		95	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		96	our $LOADAVG; # same thing, but with alpha-smoothing
		97	our $tick_start; # for load detecting purposes
57		98
58	binmode STDOUT;	99	binmode STDOUT;
59	binmode STDERR;	100	binmode STDERR;
60		101
61	# read virtual server time, if available	102	# read virtual server time, if available
62	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	103	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
63	open my $fh, "<", cf::localdir . "/runtime"	104	open my $fh, "<", "$LOCALDIR/runtime"
64	or die "unable to read runtime file: $!";	105	or die "unable to read runtime file: $!";
65	$RUNTIME = <$fh> + 0.;	106	$RUNTIME = <$fh> + 0.;
66	}	107	}
67		108
68	mkdir cf::localdir;	109	mkdir $_
69	mkdir cf::localdir . "/" . cf::playerdir;	110	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
70	mkdir cf::localdir . "/" . cf::tmpdir;
71	mkdir cf::localdir . "/" . cf::uniquedir;
72	mkdir $RANDOM_MAPS;
73		111
74	# a special map that is always available
75	our $LINK_MAP;
76	our $EMERGENCY_POSITION;	112	our $EMERGENCY_POSITION;
		113
		114	sub cf::map::normalise;
77		115
78	#############################################################################	116	#############################################################################
79		117
80	=head2 GLOBAL VARIABLES	118	=head2 GLOBAL VARIABLES
81		119
…		…
88	=item $cf::RUNTIME	126	=item $cf::RUNTIME
89		127
90	The time this server has run, starts at 0 and is increased by $cf::TICK on	128	The time this server has run, starts at 0 and is increased by $cf::TICK on
91	every server tick.	129	every server tick.
92		130
93	=item $cf::LIBDIR	131	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		132	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		133	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
94		134
95	The perl library directory, where extensions and cf-specific modules can	135	Various directories - "/etc", read-only install directory, perl-library
96	be found. It will be added to C<@INC> automatically.	136	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		137	unique-items directory, player file directory, random maps directory and
		138	database environment.
97		139
98	=item $cf::NOW	140	=item $cf::NOW
99		141
100	The time of the last (current) server tick.	142	The time of the last (current) server tick.
101		143
102	=item $cf::TICK	144	=item $cf::TICK
103		145
104	The interval between server ticks, in seconds.	146	The interval between server ticks, in seconds.
		147
		148	=item $cf::LOADAVG
		149
		150	The current CPU load on the server (alpha-smoothed), as a value between 0
		151	(none) and 1 (overloaded), indicating how much time is spent on processing
		152	objects per tick. Healthy values are < 0.5.
		153
		154	=item $cf::LOAD
		155
		156	The raw value load value from the last tick.
105		157
106	=item %cf::CFG	158	=item %cf::CFG
107		159
108	Configuration for the server, loaded from C</etc/crossfire/config>, or	160	Configuration for the server, loaded from C</etc/crossfire/config>, or
109	from wherever your confdir points to.	161	from wherever your confdir points to.
		162
		163	=item cf::wait_for_tick, cf::wait_for_tick_begin
		164
		165	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		166	returns directly I<after> the tick processing (and consequently, can only wake one process
		167	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
110		168
111	=back	169	=back
112		170
113	=cut	171	=cut
114		172
115	BEGIN {	173	BEGIN {
116	*CORE::GLOBAL::warn = sub {	174	*CORE::GLOBAL::warn = sub {
117	my $msg = join "", @_;	175	my $msg = join "", @_;
118	utf8::encode $msg;
119		176
120	$msg .= "\n"	177	$msg .= "\n"
121	unless $msg =~ /\n$/;	178	unless $msg =~ /\n$/;
122		179
		180	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		181
		182	utf8::encode $msg;
123	LOG llevError, $msg;	183	LOG llevError, $msg;
124	};	184	};
125	}	185	}
126		186
127	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	187	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
128	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	188	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
129	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	189	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
130	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	190	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
131	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	191	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		192	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
132	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	193	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
133		194
134	# we bless all objects into (empty) derived classes to force a method lookup	195	# we bless all objects into (empty) derived classes to force a method lookup
135	# within the Safe compartment.	196	# within the Safe compartment.
136	for my $pkg (qw(	197	for my $pkg (qw(
137	cf::global cf::attachable	198	cf::global cf::attachable
…		…
146		207
147	$Event::DIED = sub {	208	$Event::DIED = sub {
148	warn "error in event callback: @_";	209	warn "error in event callback: @_";
149	};	210	};
150		211
151	my %ext_pkg;
152	my @exts;
153	my @hook;
154
155	=head2 UTILITY FUNCTIONS	212	=head2 UTILITY FUNCTIONS
156		213
157	=over 4	214	=over 4
158		215
159	=cut	216	=item dumpval $ref
160		217
		218	=cut
		219
		220	sub dumpval {
		221	eval {
		222	local $SIG{__DIE__};
		223	my $d;
		224	if (1) {
		225	$d = new Data::Dumper([$_[0]], ["*var"]);
		226	$d->Terse(1);
		227	$d->Indent(2);
		228	$d->Quotekeys(0);
		229	$d->Useqq(1);
		230	#$d->Bless(...);
		231	$d->Seen($_[1]) if @_ > 1;
		232	$d = $d->Dump();
		233	}
		234	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		235	$d
		236	} || "[unable to dump $_[0]: '$@']";
		237	}
		238
161	use JSON::Syck (); # TODO# replace by JSON::PC once working	239	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
162		240
163	=item $ref = cf::from_json $json	241	=item $ref = cf::from_json $json
164		242
165	Converts a JSON string into the corresponding perl data structure.	243	Converts a JSON string into the corresponding perl data structure.
166		244
167	=cut
168
169	sub from_json($) {
170	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
171	JSON::Syck::Load $_[0]
172	}
173
174	=item $json = cf::to_json $ref	245	=item $json = cf::to_json $ref
175		246
176	Converts a perl data structure into its JSON representation.	247	Converts a perl data structure into its JSON representation.
177
178	=cut
179
180	sub to_json($) {
181	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
182	JSON::Syck::Dump $_[0]
183	}
184		248
185	=item cf::lock_wait $string	249	=item cf::lock_wait $string
186		250
187	Wait until the given lock is available. See cf::lock_acquire.	251	Wait until the given lock is available. See cf::lock_acquire.
188		252
…		…
194	returned.	258	returned.
195		259
196	Lock names should begin with a unique identifier (for example, cf::map::find	260	Lock names should begin with a unique identifier (for example, cf::map::find
197	uses map_find and cf::map::load uses map_load).	261	uses map_find and cf::map::load uses map_load).
198		262
		263	=item $locked = cf::lock_active $string
		264
		265	Return true if the lock is currently active, i.e. somebody has locked it.
		266
199	=cut	267	=cut
200		268
201	our %LOCK;	269	our %LOCK;
202		270
203	sub lock_wait($) {	271	sub lock_wait($) {
…		…
222	# wake up all waiters, to be on the safe side	290	# wake up all waiters, to be on the safe side
223	$_->ready for @{ delete $LOCK{$key} };	291	$_->ready for @{ delete $LOCK{$key} };
224	}	292	}
225	}	293	}
226		294
		295	sub lock_active($) {
		296	my ($key) = @_;
		297
		298	! ! $LOCK{$key}
		299	}
		300
227	sub freeze_mainloop {	301	sub freeze_mainloop {
228	return unless $TICK_WATCHER->is_active;	302	return unless $TICK_WATCHER->is_active;
229		303
230	my $guard = Coro::guard { $TICK_WATCHER->start };	304	my $guard = Coro::guard {
		305	$TICK_WATCHER->start;
		306	};
231	$TICK_WATCHER->stop;	307	$TICK_WATCHER->stop;
232	$guard	308	$guard
233	}	309	}
234		310
235	=item cf::async { BLOCK }	311	=item cf::async { BLOCK }
…		…
257		333
258	sub sync_job(&) {	334	sub sync_job(&) {
259	my ($job) = @_;	335	my ($job) = @_;
260		336
261	if ($Coro::current == $Coro::main) {	337	if ($Coro::current == $Coro::main) {
		338	my $time = Event::time;
		339
262	# this is the main coro, too bad, we have to block	340	# this is the main coro, too bad, we have to block
263	# till the operation succeeds, freezing the server :/	341	# till the operation succeeds, freezing the server :/
264		342
265	# TODO: use suspend/resume instead	343	# TODO: use suspend/resume instead
266	# (but this is cancel-safe)	344	# (but this is cancel-safe)
…		…
277		355
278	while ($busy) {	356	while ($busy) {
279	Coro::cede or Event::one_event;	357	Coro::cede or Event::one_event;
280	}	358	}
281		359
		360	$time = Event::time - $time;
		361
		362	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		363	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		364
		365	$tick_start += $time; # do not account sync jobs to server load
		366
282	wantarray ? @res : $res[0]	367	wantarray ? @res : $res[0]
283	} else {	368	} else {
284	# we are in another coroutine, how wonderful, everything just works	369	# we are in another coroutine, how wonderful, everything just works
285		370
286	$job->()	371	$job->()
287	}	372	}
288	}	373	}
289		374
290	=item $coro = cf::async_ext { BLOCK }	375	=item $coro = cf::async_ext { BLOCK }
291		376
292	Like async, but this coro is automcatially being canceled when the	377	Like async, but this coro is automatically being canceled when the
293	extension calling this is being unloaded.	378	extension calling this is being unloaded.
294		379
295	=cut	380	=cut
296		381
297	sub async_ext(&) {	382	sub async_ext(&) {
…		…
306		391
307	$coro	392	$coro
308	}	393	}
309		394
310	sub write_runtime {	395	sub write_runtime {
311	my $runtime = cf::localdir . "/runtime";	396	my $runtime = "$LOCALDIR/runtime";
		397
		398	# first touch the runtime file to show we are still running:
		399	# the fsync below can take a very very long time.
		400
		401	IO::AIO::aio_utime $runtime, undef, undef;
		402
		403	my $guard = cf::lock_acquire "write_runtime";
312		404
313	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	405	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
314	or return;	406	or return;
315		407
		408	my $value = $cf::RUNTIME + 90 + 10;
316	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	409	# 10 is the runtime save interval, for a monotonic clock
		410	# 60 allows for the watchdog to kill the server.
		411
317	(aio_write $fh, 0, (length $value), $value, 0) <= 0	412	(aio_write $fh, 0, (length $value), $value, 0) <= 0
318	and return;	413	and return;
319		414
		415	# always fsync - this file is important
320	aio_fsync $fh	416	aio_fsync $fh
321	and return;	417	and return;
322		418
		419	# touch it again to show we are up-to-date
		420	aio_utime $fh, undef, undef;
		421
323	close $fh	422	close $fh
324	or return;	423	or return;
325		424
326	aio_rename "$runtime~", $runtime	425	aio_rename "$runtime~", $runtime
327	and return;	426	and return;
328		427
		428	warn "runtime file written.\n";
		429
329	1	430	1
330	}	431	}
331		432
		433	=item cf::datalog type => key => value, ...
		434
		435	Log a datalog packet of the given type with the given key-value pairs.
		436
		437	=cut
		438
		439	sub datalog($@) {
		440	my ($type, %kv) = @_;
		441	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
		442	}
		443
332	=back	444	=back
333		445
334	=cut	446	=cut
335
336	#############################################################################
337
338	package cf::path;
339
340	sub new {
341	my ($class, $path, $base) = @_;
342
343	$path = $path->as_string if ref $path;
344
345	my $self = bless { }, $class;
346
347	# {... are special paths that are not touched
348	# ?xxx/... are special absolute paths
349	# ?random/... random maps
350	# /! non-realised random map exit
351	# /... normal maps
352	# ~/... per-player maps without a specific player (DO NOT USE)
353	# ~user/... per-player map of a specific user
354
355	if ($path =~ /^{/) {
356	# fine as it is
357	} elsif ($path =~ s{^\?random/}{}) {
358	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
359	$self->{random} = cf::from_json $data;
360	} else {
361	if ($path =~ s{^~([^/]+)?}{}) {
362	$self->{user_rel} = 1;
363
364	if (defined $1) {
365	$self->{user} = $1;
366	} elsif ($base =~ m{^~([^/]+)/}) {
367	$self->{user} = $1;
368	} else {
369	warn "cannot resolve user-relative path without user <$path,$base>\n";
370	}
371	} elsif ($path =~ /^\//) {
372	# already absolute
373	} else {
374	$base =~ s{[^/]+/?$}{};
375	return $class->new ("$base/$path");
376	}
377
378	for ($path) {
379	redo if s{/\.?/}{/};
380	redo if s{/[^/]+/\.\./}{/};
381	}
382	}
383
384	$self->{path} = $path;
385
386	$self
387	}
388
389	# the name / primary key / in-game path
390	sub as_string {
391	my ($self) = @_;
392
393	$self->{user_rel} ? "~$self->{user}$self->{path}"
394	: $self->{random} ? "?random/$self->{path}"
395	: $self->{path}
396	}
397
398	# the displayed name, this is a one way mapping
399	sub visible_name {
400	my ($self) = @_;
401
402	# if (my $rmp = $self->{random}) {
403	# # todo: be more intelligent about this
404	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
405	# } else {
406	$self->as_string
407	# }
408	}
409
410	# escape the /'s in the path
411	sub _escaped_path {
412	# ∕ is U+2215
413	(my $path = $_[0]{path}) =~ s/\//∕/g;
414	$path
415	}
416
417	# the original (read-only) location
418	sub load_path {
419	my ($self) = @_;
420
421	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
422	}
423
424	# the temporary/swap location
425	sub save_path {
426	my ($self) = @_;
427
428	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
429	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
430	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
431	}
432
433	# the unique path, might be eq to save_path
434	sub uniq_path {
435	my ($self) = @_;
436
437	$self->{user_rel} || $self->{random}
438	? undef
439	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
440	}
441
442	# return random map parameters, or undef
443	sub random_map_params {
444	my ($self) = @_;
445
446	$self->{random}
447	}
448
449	# this is somewhat ugly, but style maps do need special treatment
450	sub is_style_map {
451	$_[0]{path} =~ m{^/styles/}
452	}
453
454	package cf;
455		447
456	#############################################################################	448	#############################################################################
457		449
458	=head2 ATTACHABLE OBJECTS	450	=head2 ATTACHABLE OBJECTS
459		451
…		…
585	our @CB_TYPE = (); # registry for type (cf-object class) based events	577	our @CB_TYPE = (); # registry for type (cf-object class) based events
586	our @CB_MAP = ();	578	our @CB_MAP = ();
587		579
588	my %attachment;	580	my %attachment;
589		581
		582	sub cf::attachable::thawer_merge {
		583	# simply override everything except _meta
		584	local $_[0]{_meta};
		585	%{$_[0]} = %{$_[1]};
		586	}
		587
590	sub _attach_cb($$$$) {	588	sub _attach_cb($$$$) {
591	my ($registry, $event, $prio, $cb) = @_;	589	my ($registry, $event, $prio, $cb) = @_;
592		590
593	use sort 'stable';	591	use sort 'stable';
594		592
…		…
628	$registry = $CB_TYPE[$object_type] ||= [];	626	$registry = $CB_TYPE[$object_type] ||= [];
629		627
630	} elsif ($type eq "subtype") {	628	} elsif ($type eq "subtype") {
631	defined $object_type or Carp::croak "subtype specified without type";	629	defined $object_type or Carp::croak "subtype specified without type";
632	my $object_subtype = shift @arg;	630	my $object_subtype = shift @arg;
633	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	631	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
634		632
635	} elsif ($type eq "package") {	633	} elsif ($type eq "package") {
636	my $pkg = shift @arg;	634	my $pkg = shift @arg;
637		635
638	while (my ($name, $id) = each %cb_id) {	636	while (my ($name, $id) = each %cb_id) {
…		…
679	if (ref $_[0]) {	677	if (ref $_[0]) {
680	_object_attach @_;	678	_object_attach @_;
681	} else {	679	} else {
682	_attach shift->_attach_registry, @_;	680	_attach shift->_attach_registry, @_;
683	}	681	}
		682	_recalc_want;
684	};	683	};
685		684
686	# all those should be optimised	685	# all those should be optimised
687	sub cf::attachable::detach {	686	sub cf::attachable::detach {
688	my ($obj, $name) = @_;	687	my ($obj, $name) = @_;
…		…
691	delete $obj->{_attachment}{$name};	690	delete $obj->{_attachment}{$name};
692	reattach ($obj);	691	reattach ($obj);
693	} else {	692	} else {
694	Carp::croak "cannot, currently, detach class attachments";	693	Carp::croak "cannot, currently, detach class attachments";
695	}	694	}
		695	_recalc_want;
696	};	696	};
697		697
698	sub cf::attachable::attached {	698	sub cf::attachable::attached {
699	my ($obj, $name) = @_;	699	my ($obj, $name) = @_;
700		700
…		…
765	# object support	765	# object support
766		766
767	sub reattach {	767	sub reattach {
768	# basically do the same as instantiate, without calling instantiate	768	# basically do the same as instantiate, without calling instantiate
769	my ($obj) = @_;	769	my ($obj) = @_;
		770
		771	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
770		772
771	my $registry = $obj->registry;	773	my $registry = $obj->registry;
772		774
773	@$registry = ();	775	@$registry = ();
774		776
…		…
821	$filename, length $$rdata, scalar @$objs;	823	$filename, length $$rdata, scalar @$objs;
822		824
823	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	825	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
824	chmod SAVE_MODE, $fh;	826	chmod SAVE_MODE, $fh;
825	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	827	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
826	aio_fsync $fh;	828	aio_fsync $fh if $cf::USE_FSYNC;
827	close $fh;	829	close $fh;
828		830
829	if (@$objs) {	831	if (@$objs) {
830	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	832	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
831	chmod SAVE_MODE, $fh;	833	chmod SAVE_MODE, $fh;
832	my $data = Storable::nfreeze { version => 1, objs => $objs };	834	my $data = Storable::nfreeze { version => 1, objs => $objs };
833	aio_write $fh, 0, (length $data), $data, 0;	835	aio_write $fh, 0, (length $data), $data, 0;
834	aio_fsync $fh;	836	aio_fsync $fh if $cf::USE_FSYNC;
835	close $fh;	837	close $fh;
836	aio_rename "$filename.pst~", "$filename.pst";	838	aio_rename "$filename.pst~", "$filename.pst";
837	}	839	}
838	} else {	840	} else {
839	aio_unlink "$filename.pst";	841	aio_unlink "$filename.pst";
…		…
871	or return;	873	or return;
872	$av = eval { (Storable::thaw $av)->{objs} };	874	$av = eval { (Storable::thaw $av)->{objs} };
873	}	875	}
874		876
875	warn sprintf "loading %s (%d)\n",	877	warn sprintf "loading %s (%d)\n",
876	$filename, length $data, scalar @{$av || []};#d#	878	$filename, length $data, scalar @{$av || []};
877	return ($data, $av);	879	return ($data, $av);
878	}	880	}
879		881
880	#############################################################################	882	#############################################################################
881	# command handling &c	883	# command handling &c
…		…
906	=cut	908	=cut
907		909
908	sub register_extcmd {	910	sub register_extcmd {
909	my ($name, $cb) = @_;	911	my ($name, $cb) = @_;
910		912
911	my $caller = caller;
912	#warn "registering extcmd '$name' to '$caller'";
913
914	$EXTCMD{$name} = [$cb, $caller];	913	$EXTCMD{$name} = $cb;
915	}	914	}
916		915
917	cf::player->attach (	916	cf::player->attach (
918	on_command => sub {	917	on_command => sub {
919	my ($pl, $name, $params) = @_;	918	my ($pl, $name, $params) = @_;
…		…
932		931
933	my $msg = eval { from_json $buf };	932	my $msg = eval { from_json $buf };
934		933
935	if (ref $msg) {	934	if (ref $msg) {
936	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	935	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
937	if (my %reply = $cb->[0]->($pl, $msg)) {	936	if (my %reply = $cb->($pl, $msg)) {
938	$pl->ext_reply ($msg->{msgid}, %reply);	937	$pl->ext_reply ($msg->{msgid}, %reply);
939	}	938	}
940	}	939	}
941	} else {	940	} else {
942	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	941	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
944		943
945	cf::override;	944	cf::override;
946	},	945	},
947	);	946	);
948		947
949	sub register {
950	my ($base, $pkg) = @_;
951
952	#TODO
953	}
954
955	sub load_extension {
956	my ($path) = @_;
957
958	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
959	my $base = $1;
960	my $pkg = $1;
961	$pkg =~ s/[^[:word:]]/_/g;
962	$pkg = "ext::$pkg";
963
964	warn "loading '$path' into '$pkg'\n";
965
966	open my $fh, "<:utf8", $path
967	or die "$path: $!";
968
969	my $source =
970	"package $pkg; use strict; use utf8;\n"
971	. "#line 1 \"$path\"\n{\n"
972	. (do { local $/; <$fh> })
973	. "\n};\n1";
974
975	eval $source
976	or die $@ ? "$path: $@\n"
977	: "extension disabled.\n";
978
979	push @exts, $pkg;
980	$ext_pkg{$base} = $pkg;
981
982	# no strict 'refs';
983	# @{"$pkg\::ISA"} = ext::;
984
985	register $base, $pkg;
986	}
987
988	sub unload_extension {
989	my ($pkg) = @_;
990
991	warn "removing extension $pkg\n";
992
993	# remove hooks
994	#TODO
995	# for my $idx (0 .. $#PLUGIN_EVENT) {
996	# delete $hook[$idx]{$pkg};
997	# }
998
999	# remove commands
1000	for my $name (keys %COMMAND) {
1001	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1002
1003	if (@cb) {
1004	$COMMAND{$name} = \@cb;
1005	} else {
1006	delete $COMMAND{$name};
1007	}
1008	}
1009
1010	# remove extcmds
1011	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1012	delete $EXTCMD{$name};
1013	}
1014
1015	if (my $cb = $pkg->can ("unload")) {
1016	eval {
1017	$cb->($pkg);
1018	1
1019	} or warn "$pkg unloaded, but with errors: $@";
1020	}
1021
1022	Symbol::delete_package $pkg;
1023	}
1024
1025	sub load_extensions {	948	sub load_extensions {
		949	cf::sync_job {
		950	my %todo;
		951
1026	for my $ext (<$LIBDIR/*.ext>) {	952	for my $path (<$LIBDIR/*.ext>) {
1027	next unless -r $ext;	953	next unless -r $path;
1028	eval {	954
1029	load_extension $ext;	955	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		956	my $base = $1;
		957	my $pkg = $1;
		958	$pkg =~ s/[^[:word:]]/_/g;
		959	$pkg = "ext::$pkg";
		960
		961	open my $fh, "<:utf8", $path
		962	or die "$path: $!";
		963
		964	my $source = do { local $/; <$fh> };
		965
		966	my %ext = (
		967	path => $path,
		968	base => $base,
		969	pkg => $pkg,
		970	);
		971
		972	$ext{meta} = { map { split /=/, $_, 2 } split /\s+/, $1 }
		973	if $source =~ /^#!.*?perl.*?#\s*(.*)$/;
		974
		975	$ext{source} =
		976	"package $pkg; use strict; use utf8;\n"
		977	. "#line 1 \"$path\"\n{\n"
		978	. $source
		979	. "\n};\n1";
		980
		981	$todo{$base} = \%ext;
		982	}
		983
		984	my %done;
		985	while (%todo) {
		986	my $progress;
		987
		988	while (my ($k, $v) = each %todo) {
		989	for (split /,\s*/, $ext{meta}{depends}) {
		990	goto skip
		991	unless exists $done{$_};
		992	}
		993
		994	warn "... loading '$k' into '$v->{pkg}'\n";
		995
		996	unless (eval $v->{source}) {
		997	my $msg = $@ ? "$v->{path}: $@\n"
		998	: "extension disabled.\n";
		999
		1000	if (exists $v->{meta}{mandatory}) {
		1001	warn $msg;
		1002	warn "mandatory extension failed to load, exiting.\n";
		1003	exit 1;
		1004	}
		1005
		1006	die $msg;
		1007	}
		1008
		1009	$done{$k} = delete $todo{$k};
		1010	push @EXTS, $v->{pkg};
1030	1	1011	}
1031	} or warn "$ext not loaded: $@";	1012
		1013	skip:
		1014	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1015	unless $progress;
		1016	}
1032	}	1017	};
1033	}	1018	}
1034		1019
1035	#############################################################################	1020	#############################################################################
1036	# load/save/clean perl data associated with a map
1037
1038	*cf::mapsupport::on_clean = sub {
1039	my ($map) = @_;
1040
1041	my $path = $map->tmpname;
1042	defined $path or return;
1043
1044	unlink "$path.pst";
1045	};
1046
1047	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1048
1049	#############################################################################
1050	# load/save perl data associated with player->ob objects
1051
1052	sub all_objects(@) {
1053	@_, map all_objects ($_->inv), @_
1054	}
1055
1056	# TODO: compatibility cruft, remove when no longer needed
1057	cf::player->attach (
1058	on_load => sub {
1059	my ($pl, $path) = @_;
1060
1061	for my $o (all_objects $pl->ob) {
1062	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1063	$o->set_ob_key_value ("_perl_data");
1064
1065	%$o = %{ Storable::thaw pack "H*", $value };
1066	}
1067	}
1068	},
1069	);
1070
1071	#############################################################################
1072		1021
1073	=head2 CORE EXTENSIONS	1022	=head2 CORE EXTENSIONS
1074		1023
1075	Functions and methods that extend core crossfire objects.	1024	Functions and methods that extend core crossfire objects.
1076		1025
1077	=cut	1026	=cut
1078		1027
1079	package cf::player;	1028	package cf::player;
1080		1029
		1030	use Coro::AIO;
		1031
1081	=head3 cf::player	1032	=head3 cf::player
1082		1033
1083	=over 4	1034	=over 4
1084		1035
1085	=item cf::player::find $login	1036	=item cf::player::find $login
…		…
1087	Returns the given player object, loading it if necessary (might block).	1038	Returns the given player object, loading it if necessary (might block).
1088		1039
1089	=cut	1040	=cut
1090		1041
1091	sub playerdir($) {	1042	sub playerdir($) {
1092	cf::localdir	1043	"$PLAYERDIR/"
1093	. "/"
1094	. cf::playerdir
1095	. "/"
1096	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1044	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1097	}	1045	}
1098		1046
1099	sub path($) {	1047	sub path($) {
1100	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1048	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
1101		1049
1102	(playerdir $login) . "/$login.pl"	1050	(playerdir $login) . "/playerdata"
1103	}	1051	}
1104		1052
1105	sub find_active($) {	1053	sub find_active($) {
1106	$cf::PLAYER{$_[0]}	1054	$cf::PLAYER{$_[0]}
1107	and $cf::PLAYER{$_[0]}->active	1055	and $cf::PLAYER{$_[0]}->active
…		…
1110		1058
1111	sub exists($) {	1059	sub exists($) {
1112	my ($login) = @_;	1060	my ($login) = @_;
1113		1061
1114	$cf::PLAYER{$login}	1062	$cf::PLAYER{$login}
1115	or cf::sync_job { !aio_stat $login }	1063	or cf::sync_job { !aio_stat path $login }
1116	}	1064	}
1117		1065
1118	sub find($) {	1066	sub find($) {
1119	return $cf::PLAYER{$_[0]} || do {	1067	return $cf::PLAYER{$_[0]} || do {
1120	my $login = $_[0];	1068	my $login = $_[0];
1121		1069
1122	my $guard = cf::lock_acquire "user_find:$login";	1070	my $guard = cf::lock_acquire "user_find:$login";
1123		1071
1124	$cf::PLAYER{$_[0]} || do {	1072	$cf::PLAYER{$_[0]} || do {
		1073	# rename old playerfiles to new ones
		1074	#TODO: remove when no longer required
		1075	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1076	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1077	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1078	aio_unlink +(playerdir $login) . "/$login.pl";
		1079
1125	my $pl = load_pl path $login	1080	my $pl = load_pl path $login
1126	or return;	1081	or return;
1127	$cf::PLAYER{$login} = $pl	1082	$cf::PLAYER{$login} = $pl
1128	}	1083	}
1129	}	1084	}
…		…
1137	my $path = path $pl;	1092	my $path = path $pl;
1138	my $guard = cf::lock_acquire "user_save:$path";	1093	my $guard = cf::lock_acquire "user_save:$path";
1139		1094
1140	return if $pl->{deny_save};	1095	return if $pl->{deny_save};
1141		1096
1142	Coro::AIO::aio_mkdir playerdir $pl, 0770;	1097	aio_mkdir playerdir $pl, 0770;
1143	$pl->{last_save} = $cf::RUNTIME;	1098	$pl->{last_save} = $cf::RUNTIME;
1144		1099
1145	$pl->save_pl ($path);	1100	$pl->save_pl ($path);
1146	Coro::cede;	1101	Coro::cede;
1147	}	1102	}
…		…
1157	$cf::PLAYER{$login} = $self;	1112	$cf::PLAYER{$login} = $self;
1158		1113
1159	$self	1114	$self
1160	}	1115	}
1161		1116
		1117	=item $pl->quit_character
		1118
		1119	Nukes the player without looking back. If logged in, the connection will
		1120	be destroyed. May block for a long time.
		1121
		1122	=cut
		1123
1162	sub quit_character {	1124	sub quit_character {
1163	my ($pl) = @_;	1125	my ($pl) = @_;
		1126
		1127	my $name = $pl->ob->name;
1164		1128
1165	$pl->{deny_save} = 1;	1129	$pl->{deny_save} = 1;
1166	$pl->password ("*"); # this should lock out the player until we nuked the dir	1130	$pl->password ("*"); # this should lock out the player until we nuked the dir
1167		1131
1168	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1132	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
…		…
1170	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1134	$pl->invoke (cf::EVENT_PLAYER_QUIT);
1171	$pl->ns->destroy if $pl->ns;	1135	$pl->ns->destroy if $pl->ns;
1172		1136
1173	my $path = playerdir $pl;	1137	my $path = playerdir $pl;
1174	my $temp = "$path~$cf::RUNTIME~deleting~";	1138	my $temp = "$path~$cf::RUNTIME~deleting~";
1175	Coro::AIO::aio_rename $path, $temp;	1139	aio_rename $path, $temp;
1176	delete $cf::PLAYER{$pl->ob->name};	1140	delete $cf::PLAYER{$pl->ob->name};
1177	$pl->destroy;	1141	$pl->destroy;
		1142
		1143	my $prefix = qr<^~\Q$name\E/>;
		1144
		1145	# nuke player maps
		1146	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1147
1178	IO::AIO::aio_rmtree $temp;	1148	IO::AIO::aio_rmtree $temp;
1179	}	1149	}
1180		1150
		1151	=item $pl->kick
		1152
		1153	Kicks a player out of the game. This destroys the connection.
		1154
		1155	=cut
		1156
		1157	sub kick {
		1158	my ($pl, $kicker) = @_;
		1159
		1160	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1161	$pl->killer ("kicked");
		1162	$pl->ns->destroy;
		1163	}
		1164
		1165	=item cf::player::list_logins
		1166
		1167	Returns am arrayref of all valid playernames in the system, can take a
		1168	while and may block, so not sync_job-capable, ever.
		1169
		1170	=cut
		1171
		1172	sub list_logins {
		1173	my $dirs = aio_readdir $PLAYERDIR
		1174	or return [];
		1175
		1176	my @logins;
		1177
		1178	for my $login (@$dirs) {
		1179	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1180	aio_read $fh, 0, 512, my $buf, 0 or next;
		1181	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1182
		1183	utf8::decode $login;
		1184	push @logins, $login;
		1185	}
		1186
		1187	\@logins
		1188	}
		1189
		1190	=item $player->maps
		1191
		1192	Returns an arrayref of map paths that are private for this
		1193	player. May block.
		1194
		1195	=cut
		1196
		1197	sub maps($) {
		1198	my ($pl) = @_;
		1199
		1200	$pl = ref $pl ? $pl->ob->name : $pl;
		1201
		1202	my $files = aio_readdir playerdir $pl
		1203	or return;
		1204
		1205	my @paths;
		1206
		1207	for (@$files) {
		1208	utf8::decode $_;
		1209	next if /\.(?:pl|pst)$/;
		1210	next unless /^$PATH_SEP/o;
		1211
		1212	push @paths, cf::map::normalise "~$pl/$_";
		1213	}
		1214
		1215	\@paths
		1216	}
		1217
1181	=item $player->ext_reply ($msgid, $msgtype, %msg)	1218	=item $player->ext_reply ($msgid, %msg)
1182		1219
1183	Sends an ext reply to the player.	1220	Sends an ext reply to the player.
1184		1221
1185	=cut	1222	=cut
1186		1223
1187	sub ext_reply($$$%) {	1224	sub ext_reply($$%) {
1188	my ($self, $id, %msg) = @_;	1225	my ($self, $id, %msg) = @_;
1189		1226
1190	$msg{msgid} = $id;	1227	$msg{msgid} = $id;
1191		1228
1192	$self->send ("ext " . cf::to_json \%msg);	1229	$self->send ("ext " . cf::to_json \%msg);
1193	}	1230	}
1194		1231
1195	package cf;	1232	=item $player->ext_event ($type, %msg)
		1233
		1234	Sends an ext event to the client.
		1235
		1236	=cut
		1237
		1238	sub ext_event($$%) {
		1239	my ($self, $type, %msg) = @_;
		1240
		1241	$self->ns->ext_event ($type, %msg);
		1242	}
		1243
		1244	=head3 cf::region
		1245
		1246	=over 4
		1247
		1248	=cut
		1249
		1250	package cf::region;
		1251
		1252	=item cf::region::find_by_path $path
		1253
		1254	Tries to decuce the probable region for a map knowing only its path.
		1255
		1256	=cut
		1257
		1258	sub find_by_path($) {
		1259	my ($path) = @_;
		1260
		1261	my ($match, $specificity);
		1262
		1263	for my $region (list) {
		1264	if ($region->match && $path =~ $region->match) {
		1265	($match, $specificity) = ($region, $region->specificity)
		1266	if $region->specificity > $specificity;
		1267	}
		1268	}
		1269
		1270	$match
		1271	}
1196		1272
1197	=back	1273	=back
1198
1199		1274
1200	=head3 cf::map	1275	=head3 cf::map
1201		1276
1202	=over 4	1277	=over 4
1203		1278
…		…
1206	package cf::map;	1281	package cf::map;
1207		1282
1208	use Fcntl;	1283	use Fcntl;
1209	use Coro::AIO;	1284	use Coro::AIO;
1210		1285
		1286	use overload
		1287	'""' => \&as_string,
		1288	fallback => 1;
		1289
1211	our $MAX_RESET = 3600;	1290	our $MAX_RESET = 3600;
1212	our $DEFAULT_RESET = 3000;	1291	our $DEFAULT_RESET = 3000;
1213		1292
1214	sub generate_random_map {	1293	sub generate_random_map {
1215	my ($path, $rmp) = @_;	1294	my ($self, $rmp) = @_;
1216
1217	# mit "rum" bekleckern, nicht	1295	# mit "rum" bekleckern, nicht
1218	cf::map::_create_random_map	1296	$self->_create_random_map (
1219	$path,
1220	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1297	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1221	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1298	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1222	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1299	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1223	$rmp->{exit_on_final_map},	1300	$rmp->{exit_on_final_map},
1224	$rmp->{xsize}, $rmp->{ysize},	1301	$rmp->{xsize}, $rmp->{ysize},
1225	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1302	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1226	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1303	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1227	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1304	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1228	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1305	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1229	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1306	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1230	(cf::region::find $rmp->{region})	1307	(cf::region::find $rmp->{region}), $rmp->{custom}
		1308	)
		1309	}
		1310
		1311	=item cf::map->register ($regex, $prio)
		1312
		1313	Register a handler for the map path matching the given regex at the
		1314	givne priority (higher is better, built-in handlers have priority 0, the
		1315	default).
		1316
		1317	=cut
		1318
		1319	sub register {
		1320	my (undef, $regex, $prio) = @_;
		1321	my $pkg = caller;
		1322
		1323	no strict;
		1324	push @{"$pkg\::ISA"}, __PACKAGE__;
		1325
		1326	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1327	}
		1328
		1329	# also paths starting with '/'
		1330	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1331
		1332	sub thawer_merge {
		1333	my ($self, $merge) = @_;
		1334
		1335	# we have to keep some variables in memory intact
		1336	local $self->{path};
		1337	local $self->{load_path};
		1338
		1339	$self->SUPER::thawer_merge ($merge);
		1340	}
		1341
		1342	sub normalise {
		1343	my ($path, $base) = @_;
		1344
		1345	$path = "$path"; # make sure its a string
		1346
		1347	$path =~ s/\.map$//;
		1348
		1349	# map plan:
		1350	#
		1351	# /! non-realised random map exit (special hack!)
		1352	# {... are special paths that are not being touched
		1353	# ?xxx/... are special absolute paths
		1354	# ?random/... random maps
		1355	# /... normal maps
		1356	# ~user/... per-player map of a specific user
		1357
		1358	$path =~ s/$PATH_SEP/\//go;
		1359
		1360	# treat it as relative path if it starts with
		1361	# something that looks reasonable
		1362	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1363	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1364
		1365	$base =~ s{[^/]+/?$}{};
		1366	$path = "$base/$path";
		1367	}
		1368
		1369	for ($path) {
		1370	redo if s{//}{/};
		1371	redo if s{/\.?/}{/};
		1372	redo if s{/[^/]+/\.\./}{/};
		1373	}
		1374
		1375	$path
		1376	}
		1377
		1378	sub new_from_path {
		1379	my (undef, $path, $base) = @_;
		1380
		1381	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1382
		1383	$path = normalise $path, $base;
		1384
		1385	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1386	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1387	my $self = bless cf::map::new, $pkg;
		1388	$self->{path} = $path; $self->path ($path);
		1389	$self->init; # pass $1 etc.
		1390	return $self;
		1391	}
		1392	}
		1393
		1394	Carp::carp "unable to resolve path '$path' (base '$base').";
		1395	()
		1396	}
		1397
		1398	sub init {
		1399	my ($self) = @_;
		1400
		1401	$self
		1402	}
		1403
		1404	sub as_string {
		1405	my ($self) = @_;
		1406
		1407	"$self->{path}"
		1408	}
		1409
		1410	# the displayed name, this is a one way mapping
		1411	sub visible_name {
		1412	&as_string
		1413	}
		1414
		1415	# the original (read-only) location
		1416	sub load_path {
		1417	my ($self) = @_;
		1418
		1419	"$MAPDIR/$self->{path}.map"
		1420	}
		1421
		1422	# the temporary/swap location
		1423	sub save_path {
		1424	my ($self) = @_;
		1425
		1426	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1427	"$TMPDIR/$path.map"
		1428	}
		1429
		1430	# the unique path, undef == no special unique path
		1431	sub uniq_path {
		1432	my ($self) = @_;
		1433
		1434	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1435	"$UNIQUEDIR/$path"
1231	}	1436	}
1232		1437
1233	# and all this just because we cannot iterate over	1438	# and all this just because we cannot iterate over
1234	# all maps in C++...	1439	# all maps in C++...
1235	sub change_all_map_light {	1440	sub change_all_map_light {
…		…
1237		1442
1238	$_->change_map_light ($change)	1443	$_->change_map_light ($change)
1239	for grep $_->outdoor, values %cf::MAP;	1444	for grep $_->outdoor, values %cf::MAP;
1240	}	1445	}
1241		1446
		1447	sub decay_objects {
		1448	my ($self) = @_;
		1449
		1450	return if $self->{deny_reset};
		1451
		1452	$self->do_decay_objects;
		1453	}
		1454
		1455	sub unlink_save {
		1456	my ($self) = @_;
		1457
		1458	utf8::encode (my $save = $self->save_path);
		1459	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1460	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1461	}
		1462
1242	sub try_load_header($) {	1463	sub load_header_from($) {
1243	my ($path) = @_;	1464	my ($self, $path) = @_;
1244		1465
1245	utf8::encode $path;	1466	utf8::encode $path;
1246	aio_open $path, O_RDONLY, 0	1467	#aio_open $path, O_RDONLY, 0
		1468	# or return;
		1469
		1470	$self->_load_header ($path)
1247	or return;	1471	or return;
1248		1472
1249	my $map = cf::map::new	1473	$self->{load_path} = $path;
		1474
		1475	1
		1476	}
		1477
		1478	sub load_header_orig {
		1479	my ($self) = @_;
		1480
		1481	$self->load_header_from ($self->load_path)
		1482	}
		1483
		1484	sub load_header_temp {
		1485	my ($self) = @_;
		1486
		1487	$self->load_header_from ($self->save_path)
		1488	}
		1489
		1490	sub prepare_temp {
		1491	my ($self) = @_;
		1492
		1493	$self->last_access ((delete $self->{last_access})
		1494	|| $cf::RUNTIME); #d#
		1495	# safety
		1496	$self->{instantiate_time} = $cf::RUNTIME
		1497	if $self->{instantiate_time} > $cf::RUNTIME;
		1498	}
		1499
		1500	sub prepare_orig {
		1501	my ($self) = @_;
		1502
		1503	$self->{load_original} = 1;
		1504	$self->{instantiate_time} = $cf::RUNTIME;
		1505	$self->last_access ($cf::RUNTIME);
		1506	$self->instantiate;
		1507	}
		1508
		1509	sub load_header {
		1510	my ($self) = @_;
		1511
		1512	if ($self->load_header_temp) {
		1513	$self->prepare_temp;
		1514	} else {
		1515	$self->load_header_orig
1250	or return;	1516	or return;
		1517	$self->prepare_orig;
		1518	}
1251		1519
1252	# for better error messages only, will be overwritten	1520	$self->{deny_reset} = 1
1253	$map->path ($path);	1521	if $self->no_reset;
1254		1522
1255	$map->load_header ($path)	1523	$self->default_region (cf::region::find_by_path $self->{path})
1256	or return;	1524	unless $self->default_region;
1257		1525
1258	$map->{load_path} = $path;	1526	1
1259
1260	$map
1261	}	1527	}
1262		1528
1263	sub find;	1529	sub find;
1264	sub find {	1530	sub find {
1265	my ($path, $origin) = @_;	1531	my ($path, $origin) = @_;
1266		1532
1267	#warn "find<$path,$origin>\n";#d#
1268
1269	$path = new cf::path $path, $origin && $origin->path;	1533	$path = normalise $path, $origin && $origin->path;
1270	my $key = $path->as_string;
1271		1534
1272	cf::lock_wait "map_find:$key";	1535	cf::lock_wait "map_find:$path";
1273		1536
1274	$cf::MAP{$key} || do {	1537	$cf::MAP{$path} || do {
1275	my $guard = cf::lock_acquire "map_find:$key";	1538	my $guard = cf::lock_acquire "map_find:$path";
1276		1539	my $map = new_from_path cf::map $path
1277	# do it the slow way
1278	my $map = try_load_header $path->save_path;
1279
1280	Coro::cede;
1281
1282	if ($map) {
1283	$map->last_access ((delete $map->{last_access})
1284	|| $cf::RUNTIME); #d#
1285	# safety
1286	$map->{instantiate_time} = $cf::RUNTIME
1287	if $map->{instantiate_time} > $cf::RUNTIME;
1288	} else {
1289	if (my $rmp = $path->random_map_params) {
1290	$map = generate_random_map $key, $rmp;
1291	} else {
1292	$map = try_load_header $path->load_path;
1293	}
1294
1295	$map or return;	1540	or return;
1296		1541
1297	$map->{load_original} = 1;
1298	$map->{instantiate_time} = $cf::RUNTIME;
1299	$map->last_access ($cf::RUNTIME);
1300	$map->instantiate;
1301
1302	# per-player maps become, after loading, normal maps
1303	$map->per_player (0) if $path->{user_rel};
1304	}
1305
1306	$map->path ($key);
1307	$map->{path} = $path;
1308	$map->{last_save} = $cf::RUNTIME;	1542	$map->{last_save} = $cf::RUNTIME;
1309		1543
1310	Coro::cede;	1544	$map->load_header
		1545	or return;
1311		1546
1312	if ($map->should_reset) {	1547	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1548	# doing this can freeze the server in a sync job, obviously
		1549	#$cf::WAIT_FOR_TICK->wait;
1313	$map->reset;	1550	$map->reset;
1314	undef $guard;	1551	undef $guard;
1315	$map = find $path	1552	return find $path;
1316	or return;
1317	}	1553	}
1318		1554
1319	$cf::MAP{$key} = $map	1555	$cf::MAP{$path} = $map
1320	}	1556	}
1321	}	1557	}
		1558
		1559	sub pre_load { }
		1560	sub post_load { }
1322		1561
1323	sub load {	1562	sub load {
1324	my ($self) = @_;	1563	my ($self) = @_;
1325		1564
		1565	local $self->{deny_reset} = 1; # loading can take a long time
		1566
1326	my $path = $self->{path};	1567	my $path = $self->{path};
		1568
		1569	{
1327	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1570	my $guard = cf::lock_acquire "map_load:$path";
1328		1571
1329	return if $self->in_memory != cf::MAP_SWAPPED;	1572	return if $self->in_memory != cf::MAP_SWAPPED;
1330		1573
1331	$self->in_memory (cf::MAP_LOADING);	1574	$self->in_memory (cf::MAP_LOADING);
1332		1575
1333	$self->alloc;	1576	$self->alloc;
		1577
		1578	$self->pre_load;
		1579	Coro::cede;
		1580
1334	$self->load_objects ($self->{load_path}, 1)	1581	$self->_load_objects ($self->{load_path}, 1)
1335	or return;	1582	or return;
1336		1583
1337	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1584	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1338	if delete $self->{load_original};	1585	if delete $self->{load_original};
1339		1586
1340	if (my $uniq = $path->uniq_path) {	1587	if (my $uniq = $self->uniq_path) {
1341	utf8::encode $uniq;	1588	utf8::encode $uniq;
1342	if (aio_open $uniq, O_RDONLY, 0) {	1589	if (aio_open $uniq, O_RDONLY, 0) {
1343	$self->clear_unique_items;	1590	$self->clear_unique_items;
1344	$self->load_objects ($uniq, 0);	1591	$self->_load_objects ($uniq, 0);
1345	}	1592	}
1346	}	1593	}
1347		1594
1348	Coro::cede;	1595	Coro::cede;
1349
1350	# now do the right thing for maps	1596	# now do the right thing for maps
1351	$self->link_multipart_objects;	1597	$self->link_multipart_objects;
1352
1353	if ($self->{path}->is_style_map) {
1354	$self->{deny_save} = 1;
1355	$self->{deny_reset} = 1;
1356	} else {
1357	$self->fix_auto_apply;
1358	$self->decay_objects;
1359	$self->update_buttons;
1360	$self->set_darkness_map;
1361	$self->difficulty ($self->estimate_difficulty)	1598	$self->difficulty ($self->estimate_difficulty)
1362	unless $self->difficulty;	1599	unless $self->difficulty;
		1600	Coro::cede;
		1601
		1602	unless ($self->{deny_activate}) {
		1603	$self->decay_objects;
		1604	$self->fix_auto_apply;
		1605	$self->update_buttons;
		1606	Coro::cede;
		1607	$self->set_darkness_map;
		1608	Coro::cede;
1363	$self->activate;	1609	$self->activate;
1364	}	1610	}
1365		1611
1366	Coro::cede;
1367
1368	$self->in_memory (cf::MAP_IN_MEMORY);	1612	$self->in_memory (cf::MAP_IN_MEMORY);
		1613	}
		1614
		1615	$self->post_load;
		1616	}
		1617
		1618	sub customise_for {
		1619	my ($self, $ob) = @_;
		1620
		1621	return find "~" . $ob->name . "/" . $self->{path}
		1622	if $self->per_player;
		1623
		1624	# return find "?party/" . $ob->name . "/" . $self->{path}
		1625	# if $self->per_party;
		1626
		1627	$self
		1628	}
		1629
		1630	# find and load all maps in the 3x3 area around a map
		1631	sub load_diag {
		1632	my ($map) = @_;
		1633
		1634	my @diag; # diagonal neighbours
		1635
		1636	for (0 .. 3) {
		1637	my $neigh = $map->tile_path ($_)
		1638	or next;
		1639	$neigh = find $neigh, $map
		1640	or next;
		1641	$neigh->load;
		1642
		1643	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1644	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1645	}
		1646
		1647	for (@diag) {
		1648	my $neigh = find @$_
		1649	or next;
		1650	$neigh->load;
		1651	}
1369	}	1652	}
1370		1653
1371	sub find_sync {	1654	sub find_sync {
1372	my ($path, $origin) = @_;	1655	my ($path, $origin) = @_;
1373		1656
1374	cf::sync_job { cf::map::find $path, $origin }	1657	cf::sync_job { find $path, $origin }
1375	}	1658	}
1376		1659
1377	sub do_load_sync {	1660	sub do_load_sync {
1378	my ($map) = @_;	1661	my ($map) = @_;
1379		1662
1380	cf::sync_job { $map->load };	1663	cf::sync_job { $map->load };
1381	}	1664	}
1382		1665
		1666	our %MAP_PREFETCH;
		1667	our $MAP_PREFETCHER = undef;
		1668
		1669	sub find_async {
		1670	my ($path, $origin) = @_;
		1671
		1672	$path = normalise $path, $origin && $origin->{path};
		1673
		1674	if (my $map = $cf::MAP{$path}) {
		1675	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1676	}
		1677
		1678	undef $MAP_PREFETCH{$path};
		1679	$MAP_PREFETCHER ||= cf::async {
		1680	while (%MAP_PREFETCH) {
		1681	for my $path (keys %MAP_PREFETCH) {
		1682	my $map = find $path
		1683	or next;
		1684	$map->load;
		1685
		1686	delete $MAP_PREFETCH{$path};
		1687	}
		1688	}
		1689	undef $MAP_PREFETCHER;
		1690	};
		1691	$MAP_PREFETCHER->prio (6);
		1692
		1693	()
		1694	}
		1695
1383	sub save {	1696	sub save {
1384	my ($self) = @_;	1697	my ($self) = @_;
1385		1698
1386	my $lock = cf::lock_acquire "map_data:" . $self->path;	1699	my $lock = cf::lock_acquire "map_data:" . $self->path;
1387		1700
1388	$self->{last_save} = $cf::RUNTIME;	1701	$self->{last_save} = $cf::RUNTIME;
1389		1702
1390	return unless $self->dirty;	1703	return unless $self->dirty;
1391		1704
1392	my $save = $self->{path}->save_path; utf8::encode $save;	1705	my $save = $self->save_path; utf8::encode $save;
1393	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	1706	my $uniq = $self->uniq_path; utf8::encode $uniq;
1394		1707
1395	$self->{load_path} = $save;	1708	$self->{load_path} = $save;
1396		1709
1397	return if $self->{deny_save};	1710	return if $self->{deny_save};
1398		1711
…		…
1401	cf::async {	1714	cf::async {
1402	$_->contr->save for $self->players;	1715	$_->contr->save for $self->players;
1403	};	1716	};
1404		1717
1405	if ($uniq) {	1718	if ($uniq) {
1406	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1719	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1407	$self->save_objects ($uniq, cf::IO_UNIQUES);	1720	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1408	} else {	1721	} else {
1409	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1722	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1410	}	1723	}
1411	}	1724	}
1412		1725
1413	sub swap_out {	1726	sub swap_out {
1414	my ($self) = @_;	1727	my ($self) = @_;
…		…
1428		1741
1429	sub reset_at {	1742	sub reset_at {
1430	my ($self) = @_;	1743	my ($self) = @_;
1431		1744
1432	# TODO: safety, remove and allow resettable per-player maps	1745	# TODO: safety, remove and allow resettable per-player maps
1433	return 1e99 if $self->{path}{user_rel};
1434	return 1e99 if $self->{deny_reset};	1746	return 1e99 if $self->{deny_reset};
1435		1747
1436	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1748	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1437	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1749	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1438		1750
…		…
1443	my ($self) = @_;	1755	my ($self) = @_;
1444		1756
1445	$self->reset_at <= $cf::RUNTIME	1757	$self->reset_at <= $cf::RUNTIME
1446	}	1758	}
1447		1759
1448	sub unlink_save {
1449	my ($self) = @_;
1450
1451	utf8::encode (my $save = $self->{path}->save_path);
1452	aioreq_pri 3; IO::AIO::aio_unlink $save;
1453	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1454	}
1455
1456	sub rename {
1457	my ($self, $new_path) = @_;
1458
1459	$self->unlink_save;
1460
1461	delete $cf::MAP{$self->path};
1462	$self->{path} = new cf::path $new_path;
1463	$self->path ($self->{path}->as_string);
1464	$cf::MAP{$self->path} = $self;
1465
1466	$self->save;
1467	}
1468
1469	sub reset {	1760	sub reset {
1470	my ($self) = @_;	1761	my ($self) = @_;
1471		1762
1472	my $lock = cf::lock_acquire "map_data:" . $self->path;	1763	my $lock = cf::lock_acquire "map_data:$self->{path}";
1473		1764
1474	return if $self->players;	1765	return if $self->players;
1475	return if $self->{path}{user_rel};#d#
1476		1766
1477	warn "resetting map ", $self->path;#d#	1767	warn "resetting map ", $self->path;
		1768
		1769	$self->in_memory (cf::MAP_SWAPPED);
		1770
		1771	# need to save uniques path
		1772	unless ($self->{deny_save}) {
		1773	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1774
		1775	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		1776	if $uniq;
		1777	}
1478		1778
1479	delete $cf::MAP{$self->path};	1779	delete $cf::MAP{$self->path};
		1780
		1781	$self->clear;
1480		1782
1481	$_->clear_links_to ($self) for values %cf::MAP;	1783	$_->clear_links_to ($self) for values %cf::MAP;
1482		1784
1483	$self->unlink_save;	1785	$self->unlink_save;
1484	$self->destroy;	1786	$self->destroy;
…		…
1487	my $nuke_counter = "aaaa";	1789	my $nuke_counter = "aaaa";
1488		1790
1489	sub nuke {	1791	sub nuke {
1490	my ($self) = @_;	1792	my ($self) = @_;
1491		1793
		1794	delete $cf::MAP{$self->path};
		1795
		1796	$self->unlink_save;
		1797
		1798	bless $self, "cf::map";
		1799	delete $self->{deny_reset};
1492	$self->{deny_save} = 1;	1800	$self->{deny_save} = 1;
1493	$self->reset_timeout (1);	1801	$self->reset_timeout (1);
1494	$self->rename ("{nuke}/" . ($nuke_counter++));	1802	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1803
		1804	$cf::MAP{$self->path} = $self;
		1805
1495	$self->reset; # polite request, might not happen	1806	$self->reset; # polite request, might not happen
1496	}	1807	}
1497		1808
1498	sub customise_for {	1809	=item $maps = cf::map::tmp_maps
1499	my ($map, $ob) = @_;
1500		1810
1501	if ($map->per_player) {	1811	Returns an arrayref with all map paths of currently instantiated and saved
1502	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	1812	maps. May block.
		1813
		1814	=cut
		1815
		1816	sub tmp_maps() {
1503	}	1817	[
1504		1818	map {
1505	$map	1819	utf8::decode $_;
		1820	/\.map$/
		1821	? normalise $_
		1822	: ()
		1823	} @{ aio_readdir $TMPDIR or [] }
		1824	]
1506	}	1825	}
1507		1826
1508	sub emergency_save {	1827	=item $maps = cf::map::random_maps
1509	my $freeze_guard = cf::freeze_mainloop;
1510		1828
1511	warn "enter emergency perl save\n";	1829	Returns an arrayref with all map paths of currently instantiated and saved
		1830	random maps. May block.
1512		1831
1513	cf::sync_job {	1832	=cut
1514	warn "begin emergency player save\n";
1515	$_->save for values %cf::PLAYER;
1516	warn "end emergency player save\n";
1517		1833
1518	warn "begin emergency map save\n";	1834	sub random_maps() {
1519	$_->save for values %cf::MAP;	1835	[
1520	warn "end emergency map save\n";	1836	map {
1521	};	1837	utf8::decode $_;
		1838	/\.map$/
		1839	? normalise "?random/$_"
		1840	: ()
		1841	} @{ aio_readdir $RANDOMDIR or [] }
		1842	]
		1843	}
1522		1844
1523	warn "leave emergency perl save\n";	1845	=item cf::map::unique_maps
		1846
		1847	Returns an arrayref of paths of all shared maps that have
		1848	instantiated unique items. May block.
		1849
		1850	=cut
		1851
		1852	sub unique_maps() {
		1853	[
		1854	map {
		1855	utf8::decode $_;
		1856	/\.map$/
		1857	? normalise $_
		1858	: ()
		1859	} @{ aio_readdir $UNIQUEDIR or [] }
		1860	]
1524	}	1861	}
1525		1862
1526	package cf;	1863	package cf;
1527		1864
1528	=back	1865	=back
1529		1866
		1867	=head3 cf::object
		1868
		1869	=cut
		1870
		1871	package cf::object;
		1872
		1873	=over 4
		1874
		1875	=item $ob->inv_recursive
		1876
		1877	Returns the inventory of the object _and_ their inventories, recursively.
		1878
		1879	=cut
		1880
		1881	sub inv_recursive_;
		1882	sub inv_recursive_ {
		1883	map { $_, inv_recursive_ $_->inv } @_
		1884	}
		1885
		1886	sub inv_recursive {
		1887	inv_recursive_ inv $_[0]
		1888	}
		1889
		1890	package cf;
		1891
		1892	=back
1530		1893
1531	=head3 cf::object::player	1894	=head3 cf::object::player
1532		1895
1533	=over 4	1896	=over 4
1534		1897
…		…
1574		1937
1575	=item $player_object->enter_link	1938	=item $player_object->enter_link
1576		1939
1577	Freezes the player and moves him/her to a special map (C<{link}>).	1940	Freezes the player and moves him/her to a special map (C<{link}>).
1578		1941
1579	The player should be reaosnably safe there for short amounts of time. You	1942	The player should be reasonably safe there for short amounts of time. You
1580	I<MUST> call C<leave_link> as soon as possible, though.	1943	I<MUST> call C<leave_link> as soon as possible, though.
1581		1944
		1945	Will never block.
		1946
1582	=item $player_object->leave_link ($map, $x, $y)	1947	=item $player_object->leave_link ($map, $x, $y)
1583		1948
1584	Moves the player out of the specila link map onto the given map. If the	1949	Moves the player out of the special C<{link}> map onto the specified
1585	map is not valid (or omitted), the player will be moved back to the	1950	map. If the map is not valid (or omitted), the player will be moved back
1586	location he/she was before the call to C<enter_link>, or, if that fails,	1951	to the location he/she was before the call to C<enter_link>, or, if that
1587	to the emergency map position.	1952	fails, to the emergency map position.
1588		1953
1589	Might block.	1954	Might block.
1590		1955
1591	=cut	1956	=cut
		1957
		1958	sub link_map {
		1959	unless ($LINK_MAP) {
		1960	$LINK_MAP = cf::map::find "{link}"
		1961	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		1962	$LINK_MAP->load;
		1963	}
		1964
		1965	$LINK_MAP
		1966	}
1592		1967
1593	sub cf::object::player::enter_link {	1968	sub cf::object::player::enter_link {
1594	my ($self) = @_;	1969	my ($self) = @_;
1595		1970
1596	$self->deactivate_recursive;	1971	$self->deactivate_recursive;
1597		1972
1598	return if $self->map == $LINK_MAP;	1973	return if UNIVERSAL::isa $self->map, "ext::map_link";
1599		1974
1600	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	1975	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1601	if $self->map;	1976	if $self->map && $self->map->{path} ne "{link}";
1602		1977
1603	$self->enter_map ($LINK_MAP, 20, 20);	1978	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1604	}	1979	}
1605		1980
1606	sub cf::object::player::leave_link {	1981	sub cf::object::player::leave_link {
1607	my ($self, $map, $x, $y) = @_;	1982	my ($self, $map, $x, $y) = @_;
		1983
		1984	return unless $self->contr->active;
1608		1985
1609	my $link_pos = delete $self->{_link_pos};	1986	my $link_pos = delete $self->{_link_pos};
1610		1987
1611	unless ($map) {	1988	unless ($map) {
1612	# restore original map position	1989	# restore original map position
…		…
1626	# use -1 or undef as default coordinates, not 0, 0	2003	# use -1 or undef as default coordinates, not 0, 0
1627	($x, $y) = ($map->enter_x, $map->enter_y)	2004	($x, $y) = ($map->enter_x, $map->enter_y)
1628	if $x <=0 && $y <= 0;	2005	if $x <=0 && $y <= 0;
1629		2006
1630	$map->load;	2007	$map->load;
		2008	$map->load_diag;
1631		2009
1632	return unless $self->contr->active;	2010	return unless $self->contr->active;
1633	$self->activate_recursive;	2011	$self->activate_recursive;
		2012
		2013	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1634	$self->enter_map ($map, $x, $y);	2014	$self->enter_map ($map, $x, $y);
1635	}	2015	}
1636		2016
1637	cf::player->attach (
1638	on_logout => sub {
1639	my ($pl) = @_;
1640
1641	# abort map switching before logout
1642	if ($pl->ob->{_link_pos}) {
1643	cf::sync_job {
1644	$pl->ob->leave_link
1645	};
1646	}
1647	},
1648	on_login => sub {
1649	my ($pl) = @_;
1650
1651	# try to abort aborted map switching on player login :)
1652	# should happen only on crashes
1653	if ($pl->ob->{_link_pos}) {
1654	$pl->ob->enter_link;
1655	(async {
1656	# we need this sleep as the login has a concurrent enter_exit running
1657	# and this sleep increases chances of the player not ending up in scorn
1658	$pl->ob->reply (undef,
1659	"There was an internal problem at your last logout, "
1660	. "the server will try to bring you to your intended destination in a second.",
1661	cf::NDI_RED);
1662	Coro::Timer::sleep 1;
1663	$pl->ob->leave_link;
1664	})->prio (2);
1665	}
1666	},
1667	);
1668
1669	=item $player_object->goto ($path, $x, $y)	2017	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1670		2018
		2019	Moves the player to the given map-path and coordinates by first freezing
		2020	her, loading and preparing them map, calling the provided $check callback
		2021	that has to return the map if sucecssful, and then unfreezes the player on
		2022	the new (success) or old (failed) map position.
		2023
1671	=cut	2024	=cut
		2025
		2026	our $GOTOGEN;
1672		2027
1673	sub cf::object::player::goto {	2028	sub cf::object::player::goto {
1674	my ($self, $path, $x, $y) = @_;	2029	my ($self, $path, $x, $y, $check) = @_;
		2030
		2031	# do generation counting so two concurrent goto's will be executed in-order
		2032	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1675		2033
1676	$self->enter_link;	2034	$self->enter_link;
1677		2035
1678	(async {	2036	(async {
1679	$path = new cf::path $path;	2037	my $map = eval {
1680
1681	my $map = cf::map::find $path->as_string;	2038	my $map = cf::map::find $path;
		2039
		2040	if ($map) {
1682	$map = $map->customise_for ($self) if $map;	2041	$map = $map->customise_for ($self);
1683		2042	$map = $check->($map) if $check && $map;
1684	# warn "entering ", $map->path, " at ($x, $y)\n"	2043	} else {
1685	# if $map;
1686
1687	$map or $map->cluck ("oy");#d#
1688	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2044	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2045	}
1689		2046
		2047	$map
		2048	};
		2049
		2050	if ($@) {
		2051	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2052	LOG llevError | logBacktrace, Carp::longmess $@;
		2053	}
		2054
		2055	if ($gen == $self->{_goto_generation}) {
		2056	delete $self->{_goto_generation};
1690	$self->leave_link ($map, $x, $y);	2057	$self->leave_link ($map, $x, $y);
		2058	}
1691	})->prio (1);	2059	})->prio (1);
1692	}	2060	}
1693		2061
1694	=item $player_object->enter_exit ($exit_object)	2062	=item $player_object->enter_exit ($exit_object)
1695		2063
…		…
1697		2065
1698	sub parse_random_map_params {	2066	sub parse_random_map_params {
1699	my ($spec) = @_;	2067	my ($spec) = @_;
1700		2068
1701	my $rmp = { # defaults	2069	my $rmp = { # defaults
1702	xsize => 10,	2070	xsize => (cf::rndm 15, 40),
1703	ysize => 10,	2071	ysize => (cf::rndm 15, 40),
		2072	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2073	#layout => string,
1704	};	2074	};
1705		2075
1706	for (split /\n/, $spec) {	2076	for (split /\n/, $spec) {
1707	my ($k, $v) = split /\s+/, $_, 2;	2077	my ($k, $v) = split /\s+/, $_, 2;
1708		2078
…		…
1712	$rmp	2082	$rmp
1713	}	2083	}
1714		2084
1715	sub prepare_random_map {	2085	sub prepare_random_map {
1716	my ($exit) = @_;	2086	my ($exit) = @_;
		2087
		2088	my $guard = cf::lock_acquire "exit_prepare:$exit";
1717		2089
1718	# all this does is basically replace the /! path by	2090	# all this does is basically replace the /! path by
1719	# a new random map path (?random/...) with a seed	2091	# a new random map path (?random/...) with a seed
1720	# that depends on the exit object	2092	# that depends on the exit object
1721		2093
1722	my $rmp = parse_random_map_params $exit->msg;	2094	my $rmp = parse_random_map_params $exit->msg;
1723		2095
1724	if ($exit->map) {	2096	if ($exit->map) {
1725	$rmp->{region} = $exit->map->region_name;	2097	$rmp->{region} = $exit->region->name;
1726	$rmp->{origin_map} = $exit->map->path;	2098	$rmp->{origin_map} = $exit->map->path;
1727	$rmp->{origin_x} = $exit->x;	2099	$rmp->{origin_x} = $exit->x;
1728	$rmp->{origin_y} = $exit->y;	2100	$rmp->{origin_y} = $exit->y;
1729	}	2101	}
1730		2102
1731	$rmp->{random_seed} ||= $exit->random_seed;	2103	$rmp->{random_seed} ||= $exit->random_seed;
1732		2104
1733	my $data = cf::to_json $rmp;	2105	my $data = cf::to_json $rmp;
1734	my $md5 = Digest::MD5::md5_hex $data;	2106	my $md5 = Digest::MD5::md5_hex $data;
		2107	my $meta = "$RANDOMDIR/$md5.meta";
1735		2108
1736	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2109	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1737	aio_write $fh, 0, (length $data), $data, 0;	2110	aio_write $fh, 0, (length $data), $data, 0;
		2111	undef $fh;
		2112	aio_rename "$meta~", $meta;
1738		2113
1739	$exit->slaying ("?random/$md5");	2114	$exit->slaying ("?random/$md5");
1740	$exit->msg (undef);	2115	$exit->msg (undef);
1741	}	2116	}
1742	}	2117	}
1743		2118
1744	sub cf::object::player::enter_exit {	2119	sub cf::object::player::enter_exit {
1745	my ($self, $exit) = @_;	2120	my ($self, $exit) = @_;
1746		2121
1747	return unless $self->type == cf::PLAYER;	2122	return unless $self->type == cf::PLAYER;
		2123
		2124	if ($exit->slaying eq "/!") {
		2125	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2126	# the problem is that $exit might not survive long enough
		2127	# so it needs to be done right now, right here
		2128	cf::sync_job { prepare_random_map $exit };
		2129	}
		2130
		2131	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2132	my $hp = $exit->stats->hp;
		2133	my $sp = $exit->stats->sp;
1748		2134
1749	$self->enter_link;	2135	$self->enter_link;
1750		2136
1751	(async {	2137	(async {
1752	$self->deactivate_recursive; # just to be sure	2138	$self->deactivate_recursive; # just to be sure
1753	unless (eval {	2139	unless (eval {
1754	prepare_random_map $exit	2140	$self->goto ($slaying, $hp, $sp);
1755	if $exit->slaying eq "/!";
1756
1757	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1758	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1759		2141
1760	1;	2142	1;
1761	}) {	2143	}) {
1762	$self->message ("Something went wrong deep within the crossfire server. "	2144	$self->message ("Something went wrong deep within the crossfire server. "
1763	. "I'll try to bring you back to the map you were before. "	2145	. "I'll try to bring you back to the map you were before. "
1764	. "Please report this to the dungeon master",	2146	. "Please report this to the dungeon master!",
1765	cf::NDI_UNIQUE | cf::NDI_RED);	2147	cf::NDI_UNIQUE | cf::NDI_RED);
1766		2148
1767	warn "ERROR in enter_exit: $@";	2149	warn "ERROR in enter_exit: $@";
1768	$self->leave_link;	2150	$self->leave_link;
1769	}	2151	}
1770	})->prio (1);	2152	})->prio (1);
…		…
1783		2165
1784	sub cf::client::send_drawinfo {	2166	sub cf::client::send_drawinfo {
1785	my ($self, $text, $flags) = @_;	2167	my ($self, $text, $flags) = @_;
1786		2168
1787	utf8::encode $text;	2169	utf8::encode $text;
1788	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2170	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1789	}	2171	}
1790		2172
		2173	=item $client->ext_event ($type, %msg)
		2174
		2175	Sends an exti event to the client.
		2176
		2177	=cut
		2178
		2179	sub cf::client::ext_event($$%) {
		2180	my ($self, $type, %msg) = @_;
		2181
		2182	$msg{msgtype} = "event_$type";
		2183	$self->send_packet ("ext " . cf::to_json \%msg);
		2184	}
1791		2185
1792	=item $success = $client->query ($flags, "text", \&cb)	2186	=item $success = $client->query ($flags, "text", \&cb)
1793		2187
1794	Queues a query to the client, calling the given callback with	2188	Queues a query to the client, calling the given callback with
1795	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2189	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
…		…
1824	# get handled first	2218	# get handled first
1825	my $queue = delete $ns->{query_queue}	2219	my $queue = delete $ns->{query_queue}
1826	or return; # be conservative, not sure how that can happen, but we saw a crash here	2220	or return; # be conservative, not sure how that can happen, but we saw a crash here
1827		2221
1828	(shift @$queue)->[1]->($msg);	2222	(shift @$queue)->[1]->($msg);
		2223	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1829		2224
1830	push @{ $ns->{query_queue} }, @$queue;	2225	push @{ $ns->{query_queue} }, @$queue;
1831		2226
1832	if (@{ $ns->{query_queue} } == @$queue) {	2227	if (@{ $ns->{query_queue} } == @$queue) {
1833	if (@$queue) {	2228	if (@$queue) {
…		…
1891		2286
1892	# here we export the classes and methods available to script code	2287	# here we export the classes and methods available to script code
1893		2288
1894	=pod	2289	=pod
1895		2290
1896	The following fucntions and emthods are available within a safe environment:	2291	The following functions and methods are available within a safe environment:
1897		2292
1898	cf::object contr pay_amount pay_player map	2293	cf::object contr pay_amount pay_player map
1899	cf::object::player player	2294	cf::object::player player
1900	cf::player peaceful	2295	cf::player peaceful
1901	cf::map trigger	2296	cf::map trigger
…		…
1986	#############################################################################	2381	#############################################################################
1987		2382
1988	=head2 EXTENSION DATABASE SUPPORT	2383	=head2 EXTENSION DATABASE SUPPORT
1989		2384
1990	Crossfire maintains a very simple database for extension use. It can	2385	Crossfire maintains a very simple database for extension use. It can
1991	currently store anything that can be serialised using Storable, which	2386	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
1992	excludes objects.	2387	convert to/from binary).
1993		2388
1994	The parameter C<$family> should best start with the name of the extension	2389	The parameter C<$family> should best start with the name of the extension
1995	using it, it should be unique.	2390	using it, it should be unique.
1996		2391
1997	=over 4	2392	=over 4
1998		2393
1999	=item $hashref = cf::db_get $family
2000
2001	Return a hashref for use by the extension C<$family>, which can be
2002	modified. After modifications, you have to call C<cf::db_dirty> or
2003	C<cf::db_sync>.
2004
2005	=item $value = cf::db_get $family => $key	2394	=item $value = cf::db_get $family => $key
2006		2395
2007	Returns a single value from the database	2396	Returns a single value from the database.
2008
2009	=item cf::db_put $family => $hashref
2010
2011	Stores the given family hashref into the database. Updates are delayed, if
2012	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2013		2397
2014	=item cf::db_put $family => $key => $value	2398	=item cf::db_put $family => $key => $value
2015		2399
2016	Stores the given C<$value> in the family hash. Updates are delayed, if you	2400	Stores the given C<$value> in the family.
2017	want the data to be synced to disk immediately, use C<cf::db_sync>.
2018
2019	=item cf::db_dirty
2020
2021	Marks the database as dirty, to be updated at a later time.
2022
2023	=item cf::db_sync
2024
2025	Immediately write the database to disk I<if it is dirty>.
2026		2401
2027	=cut	2402	=cut
2028		2403
2029	our $DB;	2404	our $DB;
2030		2405
2031	{	2406	sub db_init {
2032	my $path = cf::localdir . "/database.pst";	2407	unless ($DB) {
		2408	$DB = BDB::db_create $DB_ENV;
2033		2409
2034	sub db_load() {	2410	cf::sync_job {
2035	$DB = stat $path ? Storable::retrieve $path : { };	2411	eval {
2036	}	2412	$DB->set_flags (BDB::CHKSUM);
2037		2413
2038	my $pid;	2414	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2039		2415	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2040	sub db_save() {	2416	cf::cleanup "db_open(db): $!" if $!;
2041	waitpid $pid, 0 if $pid;	2417	};
2042	if (0 == ($pid = fork)) {	2418	cf::cleanup "db_open(db): $@" if $@;
2043	$DB->{_meta}{version} = 1;
2044	Storable::nstore $DB, "$path~";
2045	rename "$path~", $path;
2046	cf::_exit 0 if defined $pid;
2047	}	2419	};
2048	}
2049
2050	my $dirty;
2051
2052	sub db_sync() {
2053	db_save if $dirty;
2054	undef $dirty;
2055	}
2056
2057	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2058	db_sync;
2059	});	2420	}
		2421	}
2060		2422
2061	sub db_dirty() {
2062	$dirty = 1;
2063	$idle->start;
2064	}
2065
2066	sub db_get($;$) {	2423	sub db_get($$) {
2067	@_ >= 2	2424	my $key = "$_[0]/$_[1]";
2068	? $DB->{$_[0]}{$_[1]}
2069	: ($DB->{$_[0]} ||= { })
2070	}
2071		2425
		2426	cf::sync_job {
		2427	BDB::db_get $DB, undef, $key, my $data;
		2428
		2429	$! ? ()
		2430	: $data
		2431	}
		2432	}
		2433
2072	sub db_put($$;$) {	2434	sub db_put($$$) {
2073	if (@_ >= 3) {	2435	BDB::dbreq_pri 4;
2074	$DB->{$_[0]}{$_[1]} = $_[2];	2436	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
2075	} else {	2437	}
2076	$DB->{$_[0]} = $_[1];
2077	}
2078	db_dirty;
2079	}
2080		2438
2081	cf::global->attach (	2439	=item cf::cache $id => [$paths...], $processversion => $process
2082	prio => 10000,	2440
2083	on_cleanup => sub {	2441	Generic caching function that returns the value of the resource $id,
2084	db_sync;	2442	caching and regenerating as required.
		2443
		2444	This function can block.
		2445
		2446	=cut
		2447
		2448	sub cache {
		2449	my ($id, $src, $processversion, $process) = @_;
		2450
		2451	my $meta =
		2452	join "\x00",
		2453	$processversion,
		2454	map {
		2455	aio_stat $_
		2456	and Carp::croak "$_: $!";
		2457
		2458	($_, (stat _)[7,9])
		2459	} @$src;
		2460
		2461	my $dbmeta = db_get cache => "$id/meta";
		2462	if ($dbmeta ne $meta) {
		2463	# changed, we may need to process
		2464
		2465	my @data;
		2466	my $md5;
		2467
		2468	for (0 .. $#$src) {
		2469	0 <= aio_load $src->[$_], $data[$_]
		2470	or Carp::croak "$src->[$_]: $!";
2085	},	2471	}
2086	);	2472
		2473	# if processing is expensive, check
		2474	# checksum first
		2475	if (1) {
		2476	$md5 =
		2477	join "\x00",
		2478	$processversion,
		2479	map {
		2480	Coro::cede;
		2481	($src->[$_], Digest::MD5::md5_hex $data[$_])
		2482	} 0.. $#$src;
		2483
		2484
		2485	my $dbmd5 = db_get cache => "$id/md5";
		2486	if ($dbmd5 eq $md5) {
		2487	db_put cache => "$id/meta", $meta;
		2488
		2489	return db_get cache => "$id/data";
		2490	}
		2491	}
		2492
		2493	my $t1 = Time::HiRes::time;
		2494	my $data = $process->(\@data);
		2495	my $t2 = Time::HiRes::time;
		2496
		2497	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		2498
		2499	db_put cache => "$id/data", $data;
		2500	db_put cache => "$id/md5" , $md5;
		2501	db_put cache => "$id/meta", $meta;
		2502
		2503	return $data;
		2504	}
		2505
		2506	db_get cache => "$id/data"
		2507	}
		2508
		2509	=item fork_call { }, $args
		2510
		2511	Executes the given code block with the given arguments in a seperate
		2512	process, returning the results. Everything must be serialisable with
		2513	Coro::Storable. May, of course, block. Note that the executed sub may
		2514	never block itself or use any form of Event handling.
		2515
		2516	=cut
		2517
		2518	sub fork_call(&@) {
		2519	my ($cb, @args) = @_;
		2520
		2521	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		2522	# or die "socketpair: $!";
		2523	pipe my $fh1, my $fh2
		2524	or die "pipe: $!";
		2525
		2526	if (my $pid = fork) {
		2527	close $fh2;
		2528
		2529	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
		2530	$res = Coro::Storable::thaw $res;
		2531
		2532	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		2533
		2534	die $$res unless "ARRAY" eq ref $res;
		2535
		2536	return wantarray ? @$res : $res->[-1];
		2537	} else {
		2538	reset_signals;
		2539	local $SIG{__WARN__};
		2540	local $SIG{__DIE__};
		2541	eval {
		2542	close $fh1;
		2543
		2544	my @res = eval { $cb->(@args) };
		2545	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
		2546	};
		2547
		2548	warn $@ if $@;
		2549	_exit 0;
		2550	}
2087	}	2551	}
2088		2552
2089	#############################################################################	2553	#############################################################################
2090	# the server's main()	2554	# the server's init and main functions
		2555
		2556	sub load_facedata($) {
		2557	my ($path) = @_;
		2558
		2559	warn "loading facedata from $path\n";
		2560
		2561	my $facedata;
		2562	0 < aio_load $path, $facedata
		2563	or die "$path: $!";
		2564
		2565	$facedata = Coro::Storable::thaw $facedata;
		2566
		2567	$facedata->{version} == 2
		2568	or cf::cleanup "$path: version mismatch, cannot proceed.";
		2569
		2570	{
		2571	my $faces = $facedata->{faceinfo};
		2572
		2573	while (my ($face, $info) = each %$faces) {
		2574	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		2575	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
		2576	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2577	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
		2578	Coro::cede;
		2579	}
		2580
		2581	while (my ($face, $info) = each %$faces) {
		2582	next unless $info->{smooth};
		2583	my $idx = cf::face::find $face
		2584	or next;
		2585	if (my $smooth = cf::face::find $info->{smooth}) {
		2586	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2587	} else {
		2588	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2589	}
		2590	Coro::cede;
		2591	}
		2592	}
		2593
		2594	{
		2595	my $anims = $facedata->{animinfo};
		2596
		2597	while (my ($anim, $info) = each %$anims) {
		2598	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2599	Coro::cede;
		2600	}
		2601
		2602	cf::anim::invalidate_all; # d'oh
		2603	}
		2604
		2605	1
		2606	}
		2607
		2608	sub reload_regions {
		2609	load_resource_file "$MAPDIR/regions"
		2610	or die "unable to load regions file\n";
		2611	}
		2612
		2613	sub reload_facedata {
		2614	load_facedata "$DATADIR/facedata"
		2615	or die "unable to load facedata\n";
		2616	}
		2617
		2618	sub reload_archetypes {
		2619	load_resource_file "$DATADIR/archetypes"
		2620	or die "unable to load archetypes\n";
		2621	}
		2622
		2623	sub reload_treasures {
		2624	load_resource_file "$DATADIR/treasures"
		2625	or die "unable to load treasurelists\n";
		2626	}
		2627
		2628	sub reload_resources {
		2629	warn "reloading resource files...\n";
		2630
		2631	reload_regions;
		2632	reload_facedata;
		2633	#reload_archetypes;#d#
		2634	reload_archetypes;
		2635	reload_treasures;
		2636
		2637	warn "finished reloading resource files\n";
		2638	}
		2639
		2640	sub init {
		2641	reload_resources;
		2642	}
2091		2643
2092	sub cfg_load {	2644	sub cfg_load {
2093	open my $fh, "<:utf8", cf::confdir . "/config"	2645	open my $fh, "<:utf8", "$CONFDIR/config"
2094	or return;	2646	or return;
2095		2647
2096	local $/;	2648	local $/;
2097	*CFG = YAML::Syck::Load <$fh>;	2649	*CFG = YAML::Syck::Load <$fh>;
2098		2650
…		…
2112		2664
2113	sub main {	2665	sub main {
2114	# we must not ever block the main coroutine	2666	# we must not ever block the main coroutine
2115	local $Coro::idle = sub {	2667	local $Coro::idle = sub {
2116	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	2668	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		2669	(async {
2117	async { Event::one_event };	2670	Event::one_event;
		2671	})->prio (Coro::PRIO_MAX);
2118	};	2672	};
2119		2673
2120	cfg_load;	2674	cfg_load;
2121	db_load;	2675	db_init;
2122	load_extensions;	2676	load_extensions;
		2677
		2678	$TICK_WATCHER->start;
2123	Event::loop;	2679	Event::loop;
2124	}	2680	}
2125		2681
2126	#############################################################################	2682	#############################################################################
2127	# initialisation	2683	# initialisation and cleanup
2128		2684
		2685	# install some emergency cleanup handlers
		2686	BEGIN {
		2687	for my $signal (qw(INT HUP TERM)) {
		2688	Event->signal (
		2689	reentrant => 0,
		2690	data => WF_AUTOCANCEL,
		2691	signal => $signal,
		2692	prio => 0,
		2693	cb => sub {
		2694	cf::cleanup "SIG$signal";
		2695	},
		2696	);
		2697	}
		2698	}
		2699
		2700	sub emergency_save() {
		2701	my $freeze_guard = cf::freeze_mainloop;
		2702
		2703	warn "enter emergency perl save\n";
		2704
		2705	cf::sync_job {
		2706	# use a peculiar iteration method to avoid tripping on perl
		2707	# refcount bugs in for. also avoids problems with players
		2708	# and maps saved/destroyed asynchronously.
		2709	warn "begin emergency player save\n";
		2710	for my $login (keys %cf::PLAYER) {
		2711	my $pl = $cf::PLAYER{$login} or next;
		2712	$pl->valid or next;
		2713	$pl->save;
		2714	}
		2715	warn "end emergency player save\n";
		2716
		2717	warn "begin emergency map save\n";
		2718	for my $path (keys %cf::MAP) {
		2719	my $map = $cf::MAP{$path} or next;
		2720	$map->valid or next;
		2721	$map->save;
		2722	}
		2723	warn "end emergency map save\n";
		2724
		2725	warn "begin emergency database checkpoint\n";
		2726	BDB::db_env_txn_checkpoint $DB_ENV;
		2727	warn "end emergency database checkpoint\n";
		2728	};
		2729
		2730	warn "leave emergency perl save\n";
		2731	}
		2732
		2733	sub post_cleanup {
		2734	my ($make_core) = @_;
		2735
		2736	warn Carp::longmess "post_cleanup backtrace"
		2737	if $make_core;
		2738	}
		2739
2129	sub reload() {	2740	sub do_reload_perl() {
2130	# can/must only be called in main	2741	# can/must only be called in main
2131	if ($Coro::current != $Coro::main) {	2742	if ($Coro::current != $Coro::main) {
2132	warn "can only reload from main coroutine\n";	2743	warn "can only reload from main coroutine";
2133	return;	2744	return;
2134	}	2745	}
2135		2746
2136	warn "reloading...";	2747	warn "reloading...";
2137		2748
2138	my $guard = freeze_mainloop;	2749	warn "entering sync_job";
		2750
		2751	cf::sync_job {
		2752	cf::write_runtime; # external watchdog should not bark
2139	cf::emergency_save;	2753	cf::emergency_save;
		2754	cf::write_runtime; # external watchdog should not bark
2140		2755
2141	eval {	2756	warn "syncing database to disk";
		2757	BDB::db_env_txn_checkpoint $DB_ENV;
		2758
2142	# if anything goes wrong in here, we should simply crash as we already saved	2759	# if anything goes wrong in here, we should simply crash as we already saved
2143		2760
2144	# cancel all watchers	2761	warn "cancelling all WF_AUTOCANCEL watchers";
2145	for (Event::all_watchers) {	2762	for (Event::all_watchers) {
2146	$_->cancel if $_->data & WF_AUTOCANCEL;	2763	$_->cancel if $_->data & WF_AUTOCANCEL;
2147	}	2764	}
2148		2765
		2766	warn "flushing outstanding aio requests";
		2767	for (;;) {
		2768	BDB::flush;
		2769	IO::AIO::flush;
		2770	Coro::cede;
		2771	last unless IO::AIO::nreqs || BDB::nreqs;
		2772	warn "iterate...";
		2773	}
		2774
		2775	++$RELOAD;
		2776
2149	# cancel all extension coros	2777	warn "cancelling all extension coros";
2150	$_->cancel for values %EXT_CORO;	2778	$_->cancel for values %EXT_CORO;
2151	%EXT_CORO = ();	2779	%EXT_CORO = ();
2152		2780
2153	# unload all extensions	2781	warn "removing commands";
2154	for (@exts) {	2782	%COMMAND = ();
		2783
		2784	warn "removing ext commands";
		2785	%EXTCMD = ();
		2786
		2787	warn "unloading/nuking all extensions";
		2788	for my $pkg (@EXTS) {
2155	warn "unloading <$_>";	2789	warn "... unloading $pkg";
2156	unload_extension $_;	2790
		2791	if (my $cb = $pkg->can ("unload")) {
		2792	eval {
		2793	$cb->($pkg);
		2794	1
		2795	} or warn "$pkg unloaded, but with errors: $@";
2157	}	2796	}
2158		2797
		2798	warn "... nuking $pkg";
		2799	Symbol::delete_package $pkg;
		2800	}
		2801
2159	# unload all modules loaded from $LIBDIR	2802	warn "unloading all perl modules loaded from $LIBDIR";
2160	while (my ($k, $v) = each %INC) {	2803	while (my ($k, $v) = each %INC) {
2161	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2804	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2162		2805
2163	warn "removing <$k>";	2806	warn "... unloading $k";
2164	delete $INC{$k};	2807	delete $INC{$k};
2165		2808
2166	$k =~ s/\.pm$//;	2809	$k =~ s/\.pm$//;
2167	$k =~ s/\//::/g;	2810	$k =~ s/\//::/g;
2168		2811
…		…
2171	}	2814	}
2172		2815
2173	Symbol::delete_package $k;	2816	Symbol::delete_package $k;
2174	}	2817	}
2175		2818
2176	# sync database to disk
2177	cf::db_sync;
2178	IO::AIO::flush;
2179
2180	# get rid of safe::, as good as possible	2819	warn "getting rid of safe::, as good as possible";
2181	Symbol::delete_package "safe::$_"	2820	Symbol::delete_package "safe::$_"
2182	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2821	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2183		2822
2184	# remove register_script_function callbacks
2185	# TODO
2186
2187	# unload cf.pm "a bit"	2823	warn "unloading cf.pm \"a bit\"";
2188	delete $INC{"cf.pm"};	2824	delete $INC{"cf.pm"};
		2825	delete $INC{"cf/pod.pm"};
2189		2826
2190	# don't, removes xs symbols, too,	2827	# don't, removes xs symbols, too,
2191	# and global variables created in xs	2828	# and global variables created in xs
2192	#Symbol::delete_package __PACKAGE__;	2829	#Symbol::delete_package __PACKAGE__;
2193		2830
2194	# reload cf.pm	2831	warn "unload completed, starting to reload now";
		2832
2195	warn "reloading cf.pm";	2833	warn "reloading cf.pm";
2196	require cf;	2834	require cf;
2197	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2835	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2198		2836
2199	# load config and database again	2837	warn "loading config and database again";
2200	cf::cfg_load;	2838	cf::cfg_load;
2201	cf::db_load;
2202		2839
2203	# load extensions
2204	warn "load extensions";	2840	warn "loading extensions";
2205	cf::load_extensions;	2841	cf::load_extensions;
2206		2842
2207	# reattach attachments to objects	2843	warn "reattaching attachments to objects/players";
2208	warn "reattach";	2844	_global_reattach; # objects, sockets
2209	_global_reattach;	2845	warn "reattaching attachments to maps";
2210	reattach $_ for values %MAP;	2846	reattach $_ for values %MAP;
2211	};	2847	warn "reattaching attachments to players";
		2848	reattach $_ for values %PLAYER;
2212		2849
2213	if ($@) {	2850	warn "leaving sync_job";
		2851
		2852	1
		2853	} or do {
2214	warn $@;	2854	warn $@;
2215	warn "error while reloading, exiting.";	2855	warn "error while reloading, exiting.";
2216	exit 1;	2856	exit 1;
2217	}	2857	};
2218		2858
2219	warn "reloaded successfully";	2859	warn "reloaded";
2220	};	2860	};
2221		2861
2222	#############################################################################	2862	our $RELOAD_WATCHER; # used only during reload
2223		2863
2224	unless ($LINK_MAP) {	2864	sub reload_perl() {
2225	$LINK_MAP = cf::map::new;	2865	# doing reload synchronously and two reloads happen back-to-back,
		2866	# coro crashes during coro_state_free->destroy here.
2226		2867
2227	$LINK_MAP->width (41);	2868	$RELOAD_WATCHER ||= Event->timer (
2228	$LINK_MAP->height (41);	2869	reentrant => 0,
2229	$LINK_MAP->alloc;
2230	$LINK_MAP->path ("{link}");
2231	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2232	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2233
2234	# dirty hack because... archetypes are not yet loaded
2235	Event->timer (
2236	after => 10,	2870	after => 0,
		2871	data => WF_AUTOCANCEL,
2237	cb => sub {	2872	cb => sub {
2238	$_[0]->w->cancel;	2873	do_reload_perl;
2239		2874	undef $RELOAD_WATCHER;
2240	# provide some exits "home"
2241	my $exit = cf::object::new "exit";
2242
2243	$exit->slaying ($EMERGENCY_POSITION->[0]);
2244	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2245	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2246
2247	$LINK_MAP->insert ($exit->clone, 19, 19);
2248	$LINK_MAP->insert ($exit->clone, 19, 20);
2249	$LINK_MAP->insert ($exit->clone, 19, 21);
2250	$LINK_MAP->insert ($exit->clone, 20, 19);
2251	$LINK_MAP->insert ($exit->clone, 20, 21);
2252	$LINK_MAP->insert ($exit->clone, 21, 19);
2253	$LINK_MAP->insert ($exit->clone, 21, 20);
2254	$LINK_MAP->insert ($exit->clone, 21, 21);
2255
2256	$exit->destroy;
2257	});	2875	},
2258		2876	);
2259	$LINK_MAP->{deny_save} = 1;
2260	$LINK_MAP->{deny_reset} = 1;
2261
2262	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2263	}	2877	}
2264
2265	register "<global>", __PACKAGE__;
2266		2878
2267	register_command "reload" => sub {	2879	register_command "reload" => sub {
2268	my ($who, $arg) = @_;	2880	my ($who, $arg) = @_;
2269		2881
2270	if ($who->flag (FLAG_WIZ)) {	2882	if ($who->flag (FLAG_WIZ)) {
2271	$who->message ("start of reload.");
2272	reload;
2273	$who->message ("end of reload.");	2883	$who->message ("reloading server.");
		2884	async { reload_perl };
2274	}	2885	}
2275	};	2886	};
2276		2887
2277	unshift @INC, $LIBDIR;	2888	unshift @INC, $LIBDIR;
2278		2889
		2890	my $bug_warning = 0;
		2891
		2892	our @WAIT_FOR_TICK;
		2893	our @WAIT_FOR_TICK_BEGIN;
		2894
		2895	sub wait_for_tick {
		2896	return unless $TICK_WATCHER->is_active;
		2897	return if $Coro::current == $Coro::main;
		2898
		2899	my $signal = new Coro::Signal;
		2900	push @WAIT_FOR_TICK, $signal;
		2901	$signal->wait;
		2902	}
		2903
		2904	sub wait_for_tick_begin {
		2905	return unless $TICK_WATCHER->is_active;
		2906	return if $Coro::current == $Coro::main;
		2907
		2908	my $signal = new Coro::Signal;
		2909	push @WAIT_FOR_TICK_BEGIN, $signal;
		2910	$signal->wait;
		2911	}
		2912
		2913	my $min = 1e6;#d#
		2914	my $avg = 10;
2279	$TICK_WATCHER = Event->timer (	2915	$TICK_WATCHER = Event->timer (
2280	reentrant => 0,	2916	reentrant => 0,
		2917	parked => 1,
2281	prio => 0,	2918	prio => 0,
2282	at => $NEXT_TICK || $TICK,	2919	at => $NEXT_TICK || $TICK,
2283	data => WF_AUTOCANCEL,	2920	data => WF_AUTOCANCEL,
2284	cb => sub {	2921	cb => sub {
		2922	if ($Coro::current != $Coro::main) {
		2923	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2924	unless ++$bug_warning > 10;
		2925	return;
		2926	}
		2927
		2928	$NOW = $tick_start = Event::time;
		2929
2285	cf::server_tick; # one server iteration	2930	cf::server_tick; # one server iteration
		2931
		2932	0 && sync_job {#d#
		2933	for(1..10) {
		2934	my $t = Event::time;
		2935	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		2936	or die;
		2937
		2938	$map->width (50);
		2939	$map->height (50);
		2940	$map->alloc;
		2941	$map->_load_objects ("/tmp/x.map", 1);
		2942	my $t = Event::time - $t;
		2943
		2944	#next unless $t < 0.0013;#d#
		2945	if ($t < $min) {
		2946	$min = $t;
		2947	}
		2948	$avg = $avg * 0.99 + $t * 0.01;
		2949	}
		2950	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		2951	exit 0;
		2952	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
		2953	};
		2954
2286	$RUNTIME += $TICK;	2955	$RUNTIME += $TICK;
2287	$NEXT_TICK += $TICK;	2956	$NEXT_TICK += $TICK;
2288		2957
		2958	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		2959	$NEXT_RUNTIME_WRITE = $NOW + 10;
		2960	Coro::async_pool {
		2961	write_runtime
		2962	or warn "ERROR: unable to write runtime file: $!";
		2963	};
		2964	}
		2965
		2966	# my $AFTER = Event::time;
		2967	# warn $AFTER - $NOW;#d#
		2968
		2969	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		2970	$sig->send;
		2971	}
		2972	while (my $sig = shift @WAIT_FOR_TICK) {
		2973	$sig->send;
		2974	}
		2975
		2976	$NOW = Event::time;
		2977
2289	# if we are delayed by four ticks or more, skip them all	2978	# if we are delayed by four ticks or more, skip them all
2290	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2979	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2291		2980
2292	$TICK_WATCHER->at ($NEXT_TICK);	2981	$TICK_WATCHER->at ($NEXT_TICK);
2293	$TICK_WATCHER->start;	2982	$TICK_WATCHER->start;
		2983
		2984	$LOAD = ($NOW - $tick_start) / $TICK;
		2985	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		2986
		2987	_post_tick;
		2988
		2989
2294	},	2990	},
2295	);	2991	);
2296		2992
		2993	{
2297	IO::AIO::max_poll_time $TICK * 0.2;	2994	BDB::max_poll_time $TICK * 0.1;
2298		2995	$BDB_POLL_WATCHER = Event->io (
2299	Event->io (	2996	reentrant => 0,
2300	fd => IO::AIO::poll_fileno,	2997	fd => BDB::poll_fileno,
2301	poll => 'r',	2998	poll => 'r',
2302	prio => 5,	2999	prio => 0,
2303	data => WF_AUTOCANCEL,
2304	cb => \&IO::AIO::poll_cb,
2305	);
2306
2307	Event->timer (
2308	data => WF_AUTOCANCEL,	3000	data => WF_AUTOCANCEL,
2309	after => 0,	3001	cb => \&BDB::poll_cb,
2310	interval => 10,	3002	);
2311	cb => sub {	3003	BDB::min_parallel 8;
2312	(Coro::unblock_sub {	3004
2313	write_runtime	3005	BDB::set_sync_prepare {
2314	or warn "ERROR: unable to write runtime file: $!";	3006	my $status;
		3007	my $current = $Coro::current;
		3008	(
		3009	sub {
		3010	$status = $!;
		3011	$current->ready; undef $current;
		3012	},
		3013	sub {
		3014	Coro::schedule while defined $current;
		3015	$! = $status;
		3016	},
		3017	)
		3018	};
		3019
		3020	unless ($DB_ENV) {
		3021	$DB_ENV = BDB::db_env_create;
		3022
		3023	cf::sync_job {
		3024	eval {
		3025	BDB::db_env_open
		3026	$DB_ENV,
		3027	$BDBDIR,
		3028	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3029	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3030	0666;
		3031
		3032	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3033
		3034	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		3035	$DB_ENV->set_lk_detect;
		3036	};
		3037
		3038	cf::cleanup "db_env_open(db): $@" if $@;
2315	})->();	3039	};
2316	},	3040	}
2317	);	3041	}
		3042
		3043	{
		3044	IO::AIO::min_parallel 8;
		3045
		3046	undef $Coro::AIO::WATCHER;
		3047	IO::AIO::max_poll_time $TICK * 0.1;
		3048	$AIO_POLL_WATCHER = Event->io (
		3049	reentrant => 0,
		3050	data => WF_AUTOCANCEL,
		3051	fd => IO::AIO::poll_fileno,
		3052	poll => 'r',
		3053	prio => 6,
		3054	cb => \&IO::AIO::poll_cb,
		3055	);
		3056	}
		3057
		3058	my $_log_backtrace;
		3059
		3060	sub _log_backtrace {
		3061	my ($msg, @addr) = @_;
		3062
		3063	$msg =~ s/\n//;
		3064
		3065	# limit the # of concurrent backtraces
		3066	if ($_log_backtrace < 2) {
		3067	++$_log_backtrace;
		3068	async {
		3069	my @bt = fork_call {
		3070	@addr = map { sprintf "%x", $_ } @addr;
		3071	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3072	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3073	or die "addr2line: $!";
		3074
		3075	my @funcs;
		3076	my @res = <$fh>;
		3077	chomp for @res;
		3078	while (@res) {
		3079	my ($func, $line) = splice @res, 0, 2, ();
		3080	push @funcs, "[$func] $line";
		3081	}
		3082
		3083	@funcs
		3084	};
		3085
		3086	LOG llevInfo, "[ABT] $msg\n";
		3087	LOG llevInfo, "[ABT] $_\n" for @bt;
		3088	--$_log_backtrace;
		3089	};
		3090	} else {
		3091	LOG llevInfo, "[ABT] $msg\n";
		3092	LOG llevInfo, "[ABT] [suppressed]\n";
		3093	}
		3094	}
		3095
		3096	# load additional modules
		3097	use cf::pod;
2318		3098
2319	END { cf::emergency_save }	3099	END { cf::emergency_save }
2320		3100
2321	1	3101	1
2322		3102

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