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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.150 by root, Mon Jan 8 19:25:53 2007 UTC vs.
Revision 1.274 by root, Tue Jun 5 13:05:02 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 {	948	sub load_extension {
956	my ($path) = @_;	949	my ($path) = @_;
957		950
958	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	951	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
959	my $base = $1;	952	my $base = $1;
960	my $pkg = $1;	953	my $pkg = $1;
961	$pkg =~ s/[^[:word:]]/_/g;	954	$pkg =~ s/[^[:word:]]/_/g;
962	$pkg = "ext::$pkg";	955	$pkg = "ext::$pkg";
963		956
964	warn "loading '$path' into '$pkg'\n";	957	warn "... loading '$path' into '$pkg'\n";
965		958
966	open my $fh, "<:utf8", $path	959	open my $fh, "<:utf8", $path
967	or die "$path: $!";	960	or die "$path: $!";
968		961
969	my $source =	962	my $source =
970	"package $pkg; use strict; use utf8;\n"	963	"package $pkg; use strict; use utf8;\n"
971	. "#line 1 \"$path\"\n{\n"	964	. "#line 1 \"$path\"\n{\n"
972	. (do { local $/; <$fh> })	965	. (do { local $/; <$fh> })
973	. "\n};\n1";	966	. "\n};\n1";
974		967
975	eval $source	968	unless (eval $source) {
976	or die $@ ? "$path: $@\n"	969	my $msg = $@ ? "$path: $@\n"
977	: "extension disabled.\n";	970	: "extension disabled.\n";
978		971	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
979	push @exts, $pkg;	972	warn $@;
980	$ext_pkg{$base} = $pkg;	973	warn "mandatory extension failed to load, exiting.\n";
981		974	exit 1;
982	# no strict 'refs';	975	}
983	# @{"$pkg\::ISA"} = ext::;	976	die $@;
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	# }	977	}
998		978
999	# remove commands	979	push @EXTS, $pkg;
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	}	980	}
1024		981
1025	sub load_extensions {	982	sub load_extensions {
1026	for my $ext (<$LIBDIR/*.ext>) {	983	for my $ext (<$LIBDIR/*.ext>) {
1027	next unless -r $ext;	984	next unless -r $ext;
…		…
1031	} or warn "$ext not loaded: $@";	988	} or warn "$ext not loaded: $@";
1032	}	989	}
1033	}	990	}
1034		991
1035	#############################################################################	992	#############################################################################
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		993
1073	=head2 CORE EXTENSIONS	994	=head2 CORE EXTENSIONS
1074		995
1075	Functions and methods that extend core crossfire objects.	996	Functions and methods that extend core crossfire objects.
1076		997
1077	=cut	998	=cut
1078		999
1079	package cf::player;	1000	package cf::player;
1080		1001
		1002	use Coro::AIO;
		1003
1081	=head3 cf::player	1004	=head3 cf::player
1082		1005
1083	=over 4	1006	=over 4
1084		1007
1085	=item cf::player::find $login	1008	=item cf::player::find $login
…		…
1087	Returns the given player object, loading it if necessary (might block).	1010	Returns the given player object, loading it if necessary (might block).
1088		1011
1089	=cut	1012	=cut
1090		1013
1091	sub playerdir($) {	1014	sub playerdir($) {
1092	cf::localdir	1015	"$PLAYERDIR/"
1093	. "/"
1094	. cf::playerdir
1095	. "/"
1096	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1016	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1097	}	1017	}
1098		1018
1099	sub path($) {	1019	sub path($) {
1100	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1020	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
1101		1021
1102	(playerdir $login) . "/$login.pl"	1022	(playerdir $login) . "/playerdata"
1103	}	1023	}
1104		1024
1105	sub find_active($) {	1025	sub find_active($) {
1106	$cf::PLAYER{$_[0]}	1026	$cf::PLAYER{$_[0]}
1107	and $cf::PLAYER{$_[0]}->active	1027	and $cf::PLAYER{$_[0]}->active
…		…
1110		1030
1111	sub exists($) {	1031	sub exists($) {
1112	my ($login) = @_;	1032	my ($login) = @_;
1113		1033
1114	$cf::PLAYER{$login}	1034	$cf::PLAYER{$login}
1115	or cf::sync_job { !aio_stat $login }	1035	or cf::sync_job { !aio_stat path $login }
1116	}	1036	}
1117		1037
1118	sub find($) {	1038	sub find($) {
1119	return $cf::PLAYER{$_[0]} || do {	1039	return $cf::PLAYER{$_[0]} || do {
1120	my $login = $_[0];	1040	my $login = $_[0];
1121		1041
1122	my $guard = cf::lock_acquire "user_find:$login";	1042	my $guard = cf::lock_acquire "user_find:$login";
1123		1043
1124	$cf::PLAYER{$login} ||= (load_pl path $login or return);	1044	$cf::PLAYER{$_[0]} || do {
		1045	# rename old playerfiles to new ones
		1046	#TODO: remove when no longer required
		1047	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1048	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1049	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1050	aio_unlink +(playerdir $login) . "/$login.pl";
		1051
		1052	my $pl = load_pl path $login
		1053	or return;
		1054	$cf::PLAYER{$login} = $pl
		1055	}
1125	};	1056	}
1126	}	1057	}
1127		1058
1128	sub save($) {	1059	sub save($) {
1129	my ($pl) = @_;	1060	my ($pl) = @_;
1130		1061
…		…
1133	my $path = path $pl;	1064	my $path = path $pl;
1134	my $guard = cf::lock_acquire "user_save:$path";	1065	my $guard = cf::lock_acquire "user_save:$path";
1135		1066
1136	return if $pl->{deny_save};	1067	return if $pl->{deny_save};
1137		1068
1138	Coro::AIO::aio_mkdir playerdir $pl, 0770;	1069	aio_mkdir playerdir $pl, 0770;
1139	$pl->{last_save} = $cf::RUNTIME;	1070	$pl->{last_save} = $cf::RUNTIME;
1140		1071
1141	$pl->save_pl ($path);	1072	$pl->save_pl ($path);
1142	Coro::cede;	1073	Coro::cede;
1143	}	1074	}
…		…
1153	$cf::PLAYER{$login} = $self;	1084	$cf::PLAYER{$login} = $self;
1154		1085
1155	$self	1086	$self
1156	}	1087	}
1157		1088
		1089	=item $pl->quit_character
		1090
		1091	Nukes the player without looking back. If logged in, the connection will
		1092	be destroyed. May block for a long time.
		1093
		1094	=cut
		1095
1158	sub quit_character {	1096	sub quit_character {
1159	my ($pl) = @_;	1097	my ($pl) = @_;
		1098
		1099	my $name = $pl->ob->name;
1160		1100
1161	$pl->{deny_save} = 1;	1101	$pl->{deny_save} = 1;
1162	$pl->password ("*"); # this should lock out the player until we nuked the dir	1102	$pl->password ("*"); # this should lock out the player until we nuked the dir
1163		1103
1164	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1104	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
…		…
1166	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1106	$pl->invoke (cf::EVENT_PLAYER_QUIT);
1167	$pl->ns->destroy if $pl->ns;	1107	$pl->ns->destroy if $pl->ns;
1168		1108
1169	my $path = playerdir $pl;	1109	my $path = playerdir $pl;
1170	my $temp = "$path~$cf::RUNTIME~deleting~";	1110	my $temp = "$path~$cf::RUNTIME~deleting~";
1171	Coro::AIO::aio_rename $path, $temp;	1111	aio_rename $path, $temp;
1172	delete $cf::PLAYER{$pl->ob->name};	1112	delete $cf::PLAYER{$pl->ob->name};
1173	$pl->destroy;	1113	$pl->destroy;
		1114
		1115	my $prefix = qr<^~\Q$name\E/>;
		1116
		1117	# nuke player maps
		1118	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1119
1174	IO::AIO::aio_rmtree $temp;	1120	IO::AIO::aio_rmtree $temp;
1175	}	1121	}
1176		1122
		1123	=item $pl->kick
		1124
		1125	Kicks a player out of the game. This destroys the connection.
		1126
		1127	=cut
		1128
		1129	sub kick {
		1130	my ($pl, $kicker) = @_;
		1131
		1132	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1133	$pl->killer ("kicked");
		1134	$pl->ns->destroy;
		1135	}
		1136
		1137	=item cf::player::list_logins
		1138
		1139	Returns am arrayref of all valid playernames in the system, can take a
		1140	while and may block, so not sync_job-capable, ever.
		1141
		1142	=cut
		1143
		1144	sub list_logins {
		1145	my $dirs = aio_readdir $PLAYERDIR
		1146	or return [];
		1147
		1148	my @logins;
		1149
		1150	for my $login (@$dirs) {
		1151	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1152	aio_read $fh, 0, 512, my $buf, 0 or next;
		1153	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1154
		1155	utf8::decode $login;
		1156	push @logins, $login;
		1157	}
		1158
		1159	\@logins
		1160	}
		1161
		1162	=item $player->maps
		1163
		1164	Returns an arrayref of map paths that are private for this
		1165	player. May block.
		1166
		1167	=cut
		1168
		1169	sub maps($) {
		1170	my ($pl) = @_;
		1171
		1172	$pl = ref $pl ? $pl->ob->name : $pl;
		1173
		1174	my $files = aio_readdir playerdir $pl
		1175	or return;
		1176
		1177	my @paths;
		1178
		1179	for (@$files) {
		1180	utf8::decode $_;
		1181	next if /\.(?:pl|pst)$/;
		1182	next unless /^$PATH_SEP/o;
		1183
		1184	push @paths, cf::map::normalise "~$pl/$_";
		1185	}
		1186
		1187	\@paths
		1188	}
		1189
1177	=item $player->ext_reply ($msgid, $msgtype, %msg)	1190	=item $player->ext_reply ($msgid, %msg)
1178		1191
1179	Sends an ext reply to the player.	1192	Sends an ext reply to the player.
1180		1193
1181	=cut	1194	=cut
1182		1195
1183	sub ext_reply($$$%) {	1196	sub ext_reply($$%) {
1184	my ($self, $id, %msg) = @_;	1197	my ($self, $id, %msg) = @_;
1185		1198
1186	$msg{msgid} = $id;	1199	$msg{msgid} = $id;
1187		1200
1188	$self->send ("ext " . cf::to_json \%msg);	1201	$self->send ("ext " . cf::to_json \%msg);
1189	}	1202	}
1190		1203
1191	package cf;	1204	=item $player->ext_event ($type, %msg)
		1205
		1206	Sends an ext event to the client.
		1207
		1208	=cut
		1209
		1210	sub ext_event($$%) {
		1211	my ($self, $type, %msg) = @_;
		1212
		1213	$self->ns->ext_event ($type, %msg);
		1214	}
		1215
		1216	=head3 cf::region
		1217
		1218	=over 4
		1219
		1220	=cut
		1221
		1222	package cf::region;
		1223
		1224	=item cf::region::find_by_path $path
		1225
		1226	Tries to decuce the probable region for a map knowing only its path.
		1227
		1228	=cut
		1229
		1230	sub find_by_path($) {
		1231	my ($path) = @_;
		1232
		1233	my ($match, $specificity);
		1234
		1235	for my $region (list) {
		1236	if ($region->match && $path =~ $region->match) {
		1237	($match, $specificity) = ($region, $region->specificity)
		1238	if $region->specificity > $specificity;
		1239	}
		1240	}
		1241
		1242	$match
		1243	}
1192		1244
1193	=back	1245	=back
1194
1195		1246
1196	=head3 cf::map	1247	=head3 cf::map
1197		1248
1198	=over 4	1249	=over 4
1199		1250
…		…
1202	package cf::map;	1253	package cf::map;
1203		1254
1204	use Fcntl;	1255	use Fcntl;
1205	use Coro::AIO;	1256	use Coro::AIO;
1206		1257
		1258	use overload
		1259	'""' => \&as_string,
		1260	fallback => 1;
		1261
1207	our $MAX_RESET = 3600;	1262	our $MAX_RESET = 3600;
1208	our $DEFAULT_RESET = 3000;	1263	our $DEFAULT_RESET = 3000;
1209		1264
1210	sub generate_random_map {	1265	sub generate_random_map {
1211	my ($path, $rmp) = @_;	1266	my ($self, $rmp) = @_;
1212
1213	# mit "rum" bekleckern, nicht	1267	# mit "rum" bekleckern, nicht
1214	cf::map::_create_random_map	1268	$self->_create_random_map (
1215	$path,
1216	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1269	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1217	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1270	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1218	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1271	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1219	$rmp->{exit_on_final_map},	1272	$rmp->{exit_on_final_map},
1220	$rmp->{xsize}, $rmp->{ysize},	1273	$rmp->{xsize}, $rmp->{ysize},
1221	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1274	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1222	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1275	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1223	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1276	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1224	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1277	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1225	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1278	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1226	(cf::region::find $rmp->{region})	1279	(cf::region::find $rmp->{region}), $rmp->{custom}
		1280	)
		1281	}
		1282
		1283	=item cf::map->register ($regex, $prio)
		1284
		1285	Register a handler for the map path matching the given regex at the
		1286	givne priority (higher is better, built-in handlers have priority 0, the
		1287	default).
		1288
		1289	=cut
		1290
		1291	sub register {
		1292	my (undef, $regex, $prio) = @_;
		1293	my $pkg = caller;
		1294
		1295	no strict;
		1296	push @{"$pkg\::ISA"}, __PACKAGE__;
		1297
		1298	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1299	}
		1300
		1301	# also paths starting with '/'
		1302	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1303
		1304	sub thawer_merge {
		1305	my ($self, $merge) = @_;
		1306
		1307	# we have to keep some variables in memory intact
		1308	local $self->{path};
		1309	local $self->{load_path};
		1310	local $self->{deny_save};
		1311	local $self->{deny_reset};
		1312
		1313	$self->SUPER::thawer_merge ($merge);
		1314	}
		1315
		1316	sub normalise {
		1317	my ($path, $base) = @_;
		1318
		1319	$path = "$path"; # make sure its a string
		1320
		1321	$path =~ s/\.map$//;
		1322
		1323	# map plan:
		1324	#
		1325	# /! non-realised random map exit (special hack!)
		1326	# {... are special paths that are not being touched
		1327	# ?xxx/... are special absolute paths
		1328	# ?random/... random maps
		1329	# /... normal maps
		1330	# ~user/... per-player map of a specific user
		1331
		1332	$path =~ s/$PATH_SEP/\//go;
		1333
		1334	# treat it as relative path if it starts with
		1335	# something that looks reasonable
		1336	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1337	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1338
		1339	$base =~ s{[^/]+/?$}{};
		1340	$path = "$base/$path";
		1341	}
		1342
		1343	for ($path) {
		1344	redo if s{//}{/};
		1345	redo if s{/\.?/}{/};
		1346	redo if s{/[^/]+/\.\./}{/};
		1347	}
		1348
		1349	$path
		1350	}
		1351
		1352	sub new_from_path {
		1353	my (undef, $path, $base) = @_;
		1354
		1355	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1356
		1357	$path = normalise $path, $base;
		1358
		1359	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1360	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1361	my $self = bless cf::map::new, $pkg;
		1362	$self->{path} = $path; $self->path ($path);
		1363	$self->init; # pass $1 etc.
		1364	return $self;
		1365	}
		1366	}
		1367
		1368	Carp::carp "unable to resolve path '$path' (base '$base').";
		1369	()
		1370	}
		1371
		1372	sub init {
		1373	my ($self) = @_;
		1374
		1375	$self
		1376	}
		1377
		1378	sub as_string {
		1379	my ($self) = @_;
		1380
		1381	"$self->{path}"
		1382	}
		1383
		1384	# the displayed name, this is a one way mapping
		1385	sub visible_name {
		1386	&as_string
		1387	}
		1388
		1389	# the original (read-only) location
		1390	sub load_path {
		1391	my ($self) = @_;
		1392
		1393	"$MAPDIR/$self->{path}.map"
		1394	}
		1395
		1396	# the temporary/swap location
		1397	sub save_path {
		1398	my ($self) = @_;
		1399
		1400	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1401	"$TMPDIR/$path.map"
		1402	}
		1403
		1404	# the unique path, undef == no special unique path
		1405	sub uniq_path {
		1406	my ($self) = @_;
		1407
		1408	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1409	"$UNIQUEDIR/$path"
1227	}	1410	}
1228		1411
1229	# and all this just because we cannot iterate over	1412	# and all this just because we cannot iterate over
1230	# all maps in C++...	1413	# all maps in C++...
1231	sub change_all_map_light {	1414	sub change_all_map_light {
…		…
1233		1416
1234	$_->change_map_light ($change)	1417	$_->change_map_light ($change)
1235	for grep $_->outdoor, values %cf::MAP;	1418	for grep $_->outdoor, values %cf::MAP;
1236	}	1419	}
1237		1420
		1421	sub unlink_save {
		1422	my ($self) = @_;
		1423
		1424	utf8::encode (my $save = $self->save_path);
		1425	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1426	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1427	}
		1428
1238	sub try_load_header($) {	1429	sub load_header_from($) {
1239	my ($path) = @_;	1430	my ($self, $path) = @_;
1240		1431
1241	utf8::encode $path;	1432	utf8::encode $path;
1242	aio_open $path, O_RDONLY, 0	1433	#aio_open $path, O_RDONLY, 0
		1434	# or return;
		1435
		1436	$self->_load_header ($path)
1243	or return;	1437	or return;
1244		1438
1245	my $map = cf::map::new	1439	$self->{load_path} = $path;
		1440
		1441	1
		1442	}
		1443
		1444	sub load_header_orig {
		1445	my ($self) = @_;
		1446
		1447	$self->load_header_from ($self->load_path)
		1448	}
		1449
		1450	sub load_header_temp {
		1451	my ($self) = @_;
		1452
		1453	$self->load_header_from ($self->save_path)
		1454	}
		1455
		1456	sub prepare_temp {
		1457	my ($self) = @_;
		1458
		1459	$self->last_access ((delete $self->{last_access})
		1460	|| $cf::RUNTIME); #d#
		1461	# safety
		1462	$self->{instantiate_time} = $cf::RUNTIME
		1463	if $self->{instantiate_time} > $cf::RUNTIME;
		1464	}
		1465
		1466	sub prepare_orig {
		1467	my ($self) = @_;
		1468
		1469	$self->{load_original} = 1;
		1470	$self->{instantiate_time} = $cf::RUNTIME;
		1471	$self->last_access ($cf::RUNTIME);
		1472	$self->instantiate;
		1473	}
		1474
		1475	sub load_header {
		1476	my ($self) = @_;
		1477
		1478	if ($self->load_header_temp) {
		1479	$self->prepare_temp;
		1480	} else {
		1481	$self->load_header_orig
1246	or return;	1482	or return;
		1483	$self->prepare_orig;
		1484	}
1247		1485
1248	# for better error messages only, will be overwritten	1486	$self->default_region (cf::region::find_by_path $self->{path})
1249	$map->path ($path);	1487	unless $self->default_region;
1250		1488
1251	$map->load_header ($path)	1489	1
1252	or return;
1253
1254	$map->{load_path} = $path;
1255
1256	$map
1257	}	1490	}
1258		1491
1259	sub find;	1492	sub find;
1260	sub find {	1493	sub find {
1261	my ($path, $origin) = @_;	1494	my ($path, $origin) = @_;
1262		1495
1263	#warn "find<$path,$origin>\n";#d#
1264
1265	$path = new cf::path $path, $origin && $origin->path;	1496	$path = normalise $path, $origin && $origin->path;
1266	my $key = $path->as_string;
1267		1497
1268	cf::lock_wait "map_find:$key";	1498	cf::lock_wait "map_find:$path";
1269		1499
1270	$cf::MAP{$key} || do {	1500	$cf::MAP{$path} || do {
1271	my $guard = cf::lock_acquire "map_find:$key";	1501	my $guard = cf::lock_acquire "map_find:$path";
1272		1502	my $map = new_from_path cf::map $path
1273	# do it the slow way
1274	my $map = try_load_header $path->save_path;
1275
1276	Coro::cede;
1277
1278	if ($map) {
1279	$map->last_access ((delete $map->{last_access})
1280	|| $cf::RUNTIME); #d#
1281	# safety
1282	$map->{instantiate_time} = $cf::RUNTIME
1283	if $map->{instantiate_time} > $cf::RUNTIME;
1284	} else {
1285	if (my $rmp = $path->random_map_params) {
1286	$map = generate_random_map $key, $rmp;
1287	} else {
1288	$map = try_load_header $path->load_path;
1289	}
1290
1291	$map or return;	1503	or return;
1292		1504
1293	$map->{load_original} = 1;
1294	$map->{instantiate_time} = $cf::RUNTIME;
1295	$map->last_access ($cf::RUNTIME);
1296	$map->instantiate;
1297
1298	# per-player maps become, after loading, normal maps
1299	$map->per_player (0) if $path->{user_rel};
1300	}
1301
1302	$map->path ($key);
1303	$map->{path} = $path;
1304	$map->{last_save} = $cf::RUNTIME;	1505	$map->{last_save} = $cf::RUNTIME;
1305		1506
1306	Coro::cede;	1507	$map->load_header
		1508	or return;
1307		1509
1308	if ($map->should_reset) {	1510	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)
		1511	# doing this can freeze the server in a sync job, obviously
		1512	#$cf::WAIT_FOR_TICK->wait;
1309	$map->reset;	1513	$map->reset;
1310	undef $guard;	1514	undef $guard;
1311	$map = find $path	1515	return find $path;
1312	or return;
1313	}	1516	}
1314		1517
1315	$cf::MAP{$key} = $map	1518	$cf::MAP{$path} = $map
1316	}	1519	}
1317	}	1520	}
		1521
		1522	sub pre_load { }
		1523	sub post_load { }
1318		1524
1319	sub load {	1525	sub load {
1320	my ($self) = @_;	1526	my ($self) = @_;
1321		1527
		1528	local $self->{deny_reset} = 1; # loading can take a long time
		1529
1322	my $path = $self->{path};	1530	my $path = $self->{path};
		1531
		1532	{
1323	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1533	my $guard = cf::lock_acquire "map_load:$path";
1324		1534
1325	return if $self->in_memory != cf::MAP_SWAPPED;	1535	return if $self->in_memory != cf::MAP_SWAPPED;
1326		1536
1327	$self->in_memory (cf::MAP_LOADING);	1537	$self->in_memory (cf::MAP_LOADING);
1328		1538
1329	$self->alloc;	1539	$self->alloc;
		1540
		1541	$self->pre_load;
		1542	Coro::cede;
		1543
1330	$self->load_objects ($self->{load_path}, 1)	1544	$self->_load_objects ($self->{load_path}, 1)
1331	or return;	1545	or return;
1332		1546
1333	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1547	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1334	if delete $self->{load_original};	1548	if delete $self->{load_original};
1335		1549
1336	if (my $uniq = $path->uniq_path) {	1550	if (my $uniq = $self->uniq_path) {
1337	utf8::encode $uniq;	1551	utf8::encode $uniq;
1338	if (aio_open $uniq, O_RDONLY, 0) {	1552	if (aio_open $uniq, O_RDONLY, 0) {
1339	$self->clear_unique_items;	1553	$self->clear_unique_items;
1340	$self->load_objects ($uniq, 0);	1554	$self->_load_objects ($uniq, 0);
1341	}	1555	}
1342	}	1556	}
1343		1557
1344	Coro::cede;	1558	Coro::cede;
1345
1346	# now do the right thing for maps	1559	# now do the right thing for maps
1347	$self->link_multipart_objects;	1560	$self->link_multipart_objects;
1348
1349	if ($self->{path}->is_style_map) {
1350	$self->{deny_save} = 1;
1351	$self->{deny_reset} = 1;
1352	} else {
1353	$self->fix_auto_apply;
1354	$self->decay_objects;
1355	$self->update_buttons;
1356	$self->set_darkness_map;
1357	$self->difficulty ($self->estimate_difficulty)	1561	$self->difficulty ($self->estimate_difficulty)
1358	unless $self->difficulty;	1562	unless $self->difficulty;
		1563	Coro::cede;
		1564
		1565	unless ($self->{deny_activate}) {
		1566	$self->decay_objects;
		1567	$self->fix_auto_apply;
		1568	$self->update_buttons;
		1569	Coro::cede;
		1570	$self->set_darkness_map;
		1571	Coro::cede;
1359	$self->activate;	1572	$self->activate;
1360	}	1573	}
1361		1574
1362	Coro::cede;
1363
1364	$self->in_memory (cf::MAP_IN_MEMORY);	1575	$self->in_memory (cf::MAP_IN_MEMORY);
		1576	}
		1577
		1578	$self->post_load;
		1579	}
		1580
		1581	sub customise_for {
		1582	my ($self, $ob) = @_;
		1583
		1584	return find "~" . $ob->name . "/" . $self->{path}
		1585	if $self->per_player;
		1586
		1587	$self
		1588	}
		1589
		1590	# find and load all maps in the 3x3 area around a map
		1591	sub load_diag {
		1592	my ($map) = @_;
		1593
		1594	my @diag; # diagonal neighbours
		1595
		1596	for (0 .. 3) {
		1597	my $neigh = $map->tile_path ($_)
		1598	or next;
		1599	$neigh = find $neigh, $map
		1600	or next;
		1601	$neigh->load;
		1602
		1603	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1604	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1605	}
		1606
		1607	for (@diag) {
		1608	my $neigh = find @$_
		1609	or next;
		1610	$neigh->load;
		1611	}
1365	}	1612	}
1366		1613
1367	sub find_sync {	1614	sub find_sync {
1368	my ($path, $origin) = @_;	1615	my ($path, $origin) = @_;
1369		1616
1370	cf::sync_job { cf::map::find $path, $origin }	1617	cf::sync_job { find $path, $origin }
1371	}	1618	}
1372		1619
1373	sub do_load_sync {	1620	sub do_load_sync {
1374	my ($map) = @_;	1621	my ($map) = @_;
1375		1622
1376	cf::sync_job { $map->load };	1623	cf::sync_job { $map->load };
1377	}	1624	}
1378		1625
		1626	our %MAP_PREFETCH;
		1627	our $MAP_PREFETCHER = undef;
		1628
		1629	sub find_async {
		1630	my ($path, $origin) = @_;
		1631
		1632	$path = normalise $path, $origin && $origin->{path};
		1633
		1634	if (my $map = $cf::MAP{$path}) {
		1635	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1636	}
		1637
		1638	undef $MAP_PREFETCH{$path};
		1639	$MAP_PREFETCHER ||= cf::async {
		1640	while (%MAP_PREFETCH) {
		1641	for my $path (keys %MAP_PREFETCH) {
		1642	my $map = find $path
		1643	or next;
		1644	$map->load;
		1645
		1646	delete $MAP_PREFETCH{$path};
		1647	}
		1648	}
		1649	undef $MAP_PREFETCHER;
		1650	};
		1651	$MAP_PREFETCHER->prio (6);
		1652
		1653	()
		1654	}
		1655
1379	sub save {	1656	sub save {
1380	my ($self) = @_;	1657	my ($self) = @_;
1381		1658
1382	my $lock = cf::lock_acquire "map_data:" . $self->path;	1659	my $lock = cf::lock_acquire "map_data:" . $self->path;
1383		1660
1384	$self->{last_save} = $cf::RUNTIME;	1661	$self->{last_save} = $cf::RUNTIME;
1385		1662
1386	return unless $self->dirty;	1663	return unless $self->dirty;
1387		1664
1388	my $save = $self->{path}->save_path; utf8::encode $save;	1665	my $save = $self->save_path; utf8::encode $save;
1389	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	1666	my $uniq = $self->uniq_path; utf8::encode $uniq;
1390		1667
1391	$self->{load_path} = $save;	1668	$self->{load_path} = $save;
1392		1669
1393	return if $self->{deny_save};	1670	return if $self->{deny_save};
1394		1671
…		…
1397	cf::async {	1674	cf::async {
1398	$_->contr->save for $self->players;	1675	$_->contr->save for $self->players;
1399	};	1676	};
1400		1677
1401	if ($uniq) {	1678	if ($uniq) {
1402	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1679	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1403	$self->save_objects ($uniq, cf::IO_UNIQUES);	1680	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1404	} else {	1681	} else {
1405	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1682	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1406	}	1683	}
1407	}	1684	}
1408		1685
1409	sub swap_out {	1686	sub swap_out {
1410	my ($self) = @_;	1687	my ($self) = @_;
…		…
1424		1701
1425	sub reset_at {	1702	sub reset_at {
1426	my ($self) = @_;	1703	my ($self) = @_;
1427		1704
1428	# TODO: safety, remove and allow resettable per-player maps	1705	# TODO: safety, remove and allow resettable per-player maps
1429	return 1e99 if $self->{path}{user_rel};	1706	return 1e99 if $self->isa ("ext::map_per_player");#d#
1430	return 1e99 if $self->{deny_reset};	1707	return 1e99 if $self->{deny_reset};
1431		1708
1432	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1709	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1433	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1710	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1434		1711
…		…
1439	my ($self) = @_;	1716	my ($self) = @_;
1440		1717
1441	$self->reset_at <= $cf::RUNTIME	1718	$self->reset_at <= $cf::RUNTIME
1442	}	1719	}
1443		1720
1444	sub unlink_save {
1445	my ($self) = @_;
1446
1447	utf8::encode (my $save = $self->{path}->save_path);
1448	aioreq_pri 3; IO::AIO::aio_unlink $save;
1449	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1450	}
1451
1452	sub rename {
1453	my ($self, $new_path) = @_;
1454
1455	$self->unlink_save;
1456
1457	delete $cf::MAP{$self->path};
1458	$self->{path} = new cf::path $new_path;
1459	$self->path ($self->{path}->as_string);
1460	$cf::MAP{$self->path} = $self;
1461
1462	$self->save;
1463	}
1464
1465	sub reset {	1721	sub reset {
1466	my ($self) = @_;	1722	my ($self) = @_;
1467		1723
1468	my $lock = cf::lock_acquire "map_data:" . $self->path;	1724	my $lock = cf::lock_acquire "map_data:$self->{path}";
1469		1725
1470	return if $self->players;	1726	return if $self->players;
1471	return if $self->{path}{user_rel};#d#	1727	return if $self->isa ("ext::map_per_player");#d#
1472		1728
1473	warn "resetting map ", $self->path;#d#	1729	warn "resetting map ", $self->path;
		1730
		1731	$self->in_memory (cf::MAP_SWAPPED);
		1732
		1733	# need to save uniques path
		1734	unless ($self->{deny_save}) {
		1735	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1736
		1737	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		1738	if $uniq;
		1739	}
1474		1740
1475	delete $cf::MAP{$self->path};	1741	delete $cf::MAP{$self->path};
		1742
		1743	$self->clear;
1476		1744
1477	$_->clear_links_to ($self) for values %cf::MAP;	1745	$_->clear_links_to ($self) for values %cf::MAP;
1478		1746
1479	$self->unlink_save;	1747	$self->unlink_save;
1480	$self->destroy;	1748	$self->destroy;
…		…
1483	my $nuke_counter = "aaaa";	1751	my $nuke_counter = "aaaa";
1484		1752
1485	sub nuke {	1753	sub nuke {
1486	my ($self) = @_;	1754	my ($self) = @_;
1487		1755
		1756	delete $cf::MAP{$self->path};
		1757
		1758	$self->unlink_save;
		1759
		1760	bless $self, "cf::map";
		1761	delete $self->{deny_reset};
1488	$self->{deny_save} = 1;	1762	$self->{deny_save} = 1;
1489	$self->reset_timeout (1);	1763	$self->reset_timeout (1);
1490	$self->rename ("{nuke}/" . ($nuke_counter++));	1764	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1765
		1766	$cf::MAP{$self->path} = $self;
		1767
1491	$self->reset; # polite request, might not happen	1768	$self->reset; # polite request, might not happen
1492	}	1769	}
1493		1770
1494	sub customise_for {	1771	=item cf::map::unique_maps
1495	my ($map, $ob) = @_;
1496		1772
1497	if ($map->per_player) {	1773	Returns an arrayref of paths of all shared maps that have
1498	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	1774	instantiated unique items. May block.
1499	}
1500		1775
1501	$map	1776	=cut
1502	}
1503		1777
1504	sub emergency_save {	1778	sub unique_maps() {
1505	my $freeze_guard = cf::freeze_mainloop;	1779	my $files = aio_readdir $UNIQUEDIR
		1780	or return;
1506		1781
1507	warn "enter emergency perl save\n";	1782	my @paths;
1508		1783
1509	cf::sync_job {	1784	for (@$files) {
1510	warn "begin emergency player save\n";	1785	utf8::decode $_;
1511	$_->save for values %cf::PLAYER;	1786	next if /\.pst$/;
1512	warn "end emergency player save\n";	1787	next unless /^$PATH_SEP/o;
1513		1788
1514	warn "begin emergency map save\n";	1789	push @paths, cf::map::normalise $_;
1515	$_->save for values %cf::MAP;
1516	warn "end emergency map save\n";
1517	};	1790	}
1518		1791
1519	warn "leave emergency perl save\n";	1792	\@paths
1520	}	1793	}
1521		1794
1522	package cf;	1795	package cf;
1523		1796
1524	=back	1797	=back
1525		1798
		1799	=head3 cf::object
		1800
		1801	=cut
		1802
		1803	package cf::object;
		1804
		1805	=over 4
		1806
		1807	=item $ob->inv_recursive
		1808
		1809	Returns the inventory of the object _and_ their inventories, recursively.
		1810
		1811	=cut
		1812
		1813	sub inv_recursive_;
		1814	sub inv_recursive_ {
		1815	map { $_, inv_recursive_ $_->inv } @_
		1816	}
		1817
		1818	sub inv_recursive {
		1819	inv_recursive_ inv $_[0]
		1820	}
		1821
		1822	package cf;
		1823
		1824	=back
1526		1825
1527	=head3 cf::object::player	1826	=head3 cf::object::player
1528		1827
1529	=over 4	1828	=over 4
1530		1829
…		…
1570		1869
1571	=item $player_object->enter_link	1870	=item $player_object->enter_link
1572		1871
1573	Freezes the player and moves him/her to a special map (C<{link}>).	1872	Freezes the player and moves him/her to a special map (C<{link}>).
1574		1873
1575	The player should be reaosnably safe there for short amounts of time. You	1874	The player should be reasonably safe there for short amounts of time. You
1576	I<MUST> call C<leave_link> as soon as possible, though.	1875	I<MUST> call C<leave_link> as soon as possible, though.
1577		1876
		1877	Will never block.
		1878
1578	=item $player_object->leave_link ($map, $x, $y)	1879	=item $player_object->leave_link ($map, $x, $y)
1579		1880
1580	Moves the player out of the specila link map onto the given map. If the	1881	Moves the player out of the special C<{link}> map onto the specified
1581	map is not valid (or omitted), the player will be moved back to the	1882	map. If the map is not valid (or omitted), the player will be moved back
1582	location he/she was before the call to C<enter_link>, or, if that fails,	1883	to the location he/she was before the call to C<enter_link>, or, if that
1583	to the emergency map position.	1884	fails, to the emergency map position.
1584		1885
1585	Might block.	1886	Might block.
1586		1887
1587	=cut	1888	=cut
		1889
		1890	sub link_map {
		1891	unless ($LINK_MAP) {
		1892	$LINK_MAP = cf::map::find "{link}"
		1893	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		1894	$LINK_MAP->load;
		1895	}
		1896
		1897	$LINK_MAP
		1898	}
1588		1899
1589	sub cf::object::player::enter_link {	1900	sub cf::object::player::enter_link {
1590	my ($self) = @_;	1901	my ($self) = @_;
1591		1902
1592	$self->deactivate_recursive;	1903	$self->deactivate_recursive;
1593		1904
1594	return if $self->map == $LINK_MAP;	1905	return if UNIVERSAL::isa $self->map, "ext::map_link";
1595		1906
1596	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	1907	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1597	if $self->map;	1908	if $self->map && $self->map->{path} ne "{link}";
1598		1909
1599	$self->enter_map ($LINK_MAP, 20, 20);	1910	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1600	}	1911	}
1601		1912
1602	sub cf::object::player::leave_link {	1913	sub cf::object::player::leave_link {
1603	my ($self, $map, $x, $y) = @_;	1914	my ($self, $map, $x, $y) = @_;
		1915
		1916	return unless $self->contr->active;
1604		1917
1605	my $link_pos = delete $self->{_link_pos};	1918	my $link_pos = delete $self->{_link_pos};
1606		1919
1607	unless ($map) {	1920	unless ($map) {
1608	# restore original map position	1921	# restore original map position
…		…
1622	# use -1 or undef as default coordinates, not 0, 0	1935	# use -1 or undef as default coordinates, not 0, 0
1623	($x, $y) = ($map->enter_x, $map->enter_y)	1936	($x, $y) = ($map->enter_x, $map->enter_y)
1624	if $x <=0 && $y <= 0;	1937	if $x <=0 && $y <= 0;
1625		1938
1626	$map->load;	1939	$map->load;
		1940	$map->load_diag;
1627		1941
1628	return unless $self->contr->active;	1942	return unless $self->contr->active;
1629	$self->activate_recursive;	1943	$self->activate_recursive;
		1944
		1945	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1630	$self->enter_map ($map, $x, $y);	1946	$self->enter_map ($map, $x, $y);
1631	}	1947	}
1632		1948
1633	cf::player->attach (
1634	on_logout => sub {
1635	my ($pl) = @_;
1636
1637	# abort map switching before logout
1638	if ($pl->ob->{_link_pos}) {
1639	cf::sync_job {
1640	$pl->ob->leave_link
1641	};
1642	}
1643	},
1644	on_login => sub {
1645	my ($pl) = @_;
1646
1647	# try to abort aborted map switching on player login :)
1648	# should happen only on crashes
1649	if ($pl->ob->{_link_pos}) {
1650	$pl->ob->enter_link;
1651	(async {
1652	# we need this sleep as the login has a concurrent enter_exit running
1653	# and this sleep increases chances of the player not ending up in scorn
1654	$pl->ob->reply (undef,
1655	"There was an internal problem at your last logout, "
1656	. "the server will try to bring you to your intended destination in a second.",
1657	cf::NDI_RED);
1658	Coro::Timer::sleep 1;
1659	$pl->ob->leave_link;
1660	})->prio (2);
1661	}
1662	},
1663	);
1664
1665	=item $player_object->goto ($path, $x, $y)	1949	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1666		1950
		1951	Moves the player to the given map-path and coordinates by first freezing
		1952	her, loading and preparing them map, calling the provided $check callback
		1953	that has to return the map if sucecssful, and then unfreezes the player on
		1954	the new (success) or old (failed) map position.
		1955
1667	=cut	1956	=cut
		1957
		1958	our $GOTOGEN;
1668		1959
1669	sub cf::object::player::goto {	1960	sub cf::object::player::goto {
1670	my ($self, $path, $x, $y) = @_;	1961	my ($self, $path, $x, $y, $check) = @_;
		1962
		1963	# do generation counting so two concurrent goto's will be executed in-order
		1964	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1671		1965
1672	$self->enter_link;	1966	$self->enter_link;
1673		1967
1674	(async {	1968	(async {
1675	$path = new cf::path $path;	1969	my $map = eval {
1676
1677	my $map = cf::map::find $path->as_string;	1970	my $map = cf::map::find $path;
		1971
		1972	if ($map) {
1678	$map = $map->customise_for ($self) if $map;	1973	$map = $map->customise_for ($self);
1679		1974	$map = $check->($map) if $check && $map;
1680	# warn "entering ", $map->path, " at ($x, $y)\n"	1975	} else {
1681	# if $map;
1682
1683	$map or $map->cluck ("oy");#d#
1684	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	1976	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		1977	}
1685		1978
		1979	$map
		1980	};
		1981
		1982	if ($@) {
		1983	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		1984	LOG llevError | logBacktrace, Carp::longmess $@;
		1985	}
		1986
		1987	if ($gen == $self->{_goto_generation}) {
		1988	delete $self->{_goto_generation};
1686	$self->leave_link ($map, $x, $y);	1989	$self->leave_link ($map, $x, $y);
		1990	}
1687	})->prio (1);	1991	})->prio (1);
1688	}	1992	}
1689		1993
1690	=item $player_object->enter_exit ($exit_object)	1994	=item $player_object->enter_exit ($exit_object)
1691		1995
…		…
1693		1997
1694	sub parse_random_map_params {	1998	sub parse_random_map_params {
1695	my ($spec) = @_;	1999	my ($spec) = @_;
1696		2000
1697	my $rmp = { # defaults	2001	my $rmp = { # defaults
1698	xsize => 10,	2002	xsize => (cf::rndm 15, 40),
1699	ysize => 10,	2003	ysize => (cf::rndm 15, 40),
		2004	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2005	#layout => string,
1700	};	2006	};
1701		2007
1702	for (split /\n/, $spec) {	2008	for (split /\n/, $spec) {
1703	my ($k, $v) = split /\s+/, $_, 2;	2009	my ($k, $v) = split /\s+/, $_, 2;
1704		2010
…		…
1708	$rmp	2014	$rmp
1709	}	2015	}
1710		2016
1711	sub prepare_random_map {	2017	sub prepare_random_map {
1712	my ($exit) = @_;	2018	my ($exit) = @_;
		2019
		2020	my $guard = cf::lock_acquire "exit_prepare:$exit";
1713		2021
1714	# all this does is basically replace the /! path by	2022	# all this does is basically replace the /! path by
1715	# a new random map path (?random/...) with a seed	2023	# a new random map path (?random/...) with a seed
1716	# that depends on the exit object	2024	# that depends on the exit object
1717		2025
1718	my $rmp = parse_random_map_params $exit->msg;	2026	my $rmp = parse_random_map_params $exit->msg;
1719		2027
1720	if ($exit->map) {	2028	if ($exit->map) {
1721	$rmp->{region} = $exit->map->region_name;	2029	$rmp->{region} = $exit->region->name;
1722	$rmp->{origin_map} = $exit->map->path;	2030	$rmp->{origin_map} = $exit->map->path;
1723	$rmp->{origin_x} = $exit->x;	2031	$rmp->{origin_x} = $exit->x;
1724	$rmp->{origin_y} = $exit->y;	2032	$rmp->{origin_y} = $exit->y;
1725	}	2033	}
1726		2034
1727	$rmp->{random_seed} ||= $exit->random_seed;	2035	$rmp->{random_seed} ||= $exit->random_seed;
1728		2036
1729	my $data = cf::to_json $rmp;	2037	my $data = cf::to_json $rmp;
1730	my $md5 = Digest::MD5::md5_hex $data;	2038	my $md5 = Digest::MD5::md5_hex $data;
		2039	my $meta = "$RANDOMDIR/$md5.meta";
1731		2040
1732	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2041	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1733	aio_write $fh, 0, (length $data), $data, 0;	2042	aio_write $fh, 0, (length $data), $data, 0;
		2043	undef $fh;
		2044	aio_rename "$meta~", $meta;
1734		2045
1735	$exit->slaying ("?random/$md5");	2046	$exit->slaying ("?random/$md5");
1736	$exit->msg (undef);	2047	$exit->msg (undef);
1737	}	2048	}
1738	}	2049	}
1739		2050
1740	sub cf::object::player::enter_exit {	2051	sub cf::object::player::enter_exit {
1741	my ($self, $exit) = @_;	2052	my ($self, $exit) = @_;
1742		2053
1743	return unless $self->type == cf::PLAYER;	2054	return unless $self->type == cf::PLAYER;
		2055
		2056	if ($exit->slaying eq "/!") {
		2057	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2058	# the problem is that $exit might not survive long enough
		2059	# so it needs to be done right now, right here
		2060	cf::sync_job { prepare_random_map $exit };
		2061	}
		2062
		2063	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2064	my $hp = $exit->stats->hp;
		2065	my $sp = $exit->stats->sp;
1744		2066
1745	$self->enter_link;	2067	$self->enter_link;
1746		2068
1747	(async {	2069	(async {
1748	$self->deactivate_recursive; # just to be sure	2070	$self->deactivate_recursive; # just to be sure
1749	unless (eval {	2071	unless (eval {
1750	prepare_random_map $exit	2072	$self->goto ($slaying, $hp, $sp);
1751	if $exit->slaying eq "/!";
1752
1753	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1754	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1755		2073
1756	1;	2074	1;
1757	}) {	2075	}) {
1758	$self->message ("Something went wrong deep within the crossfire server. "	2076	$self->message ("Something went wrong deep within the crossfire server. "
1759	. "I'll try to bring you back to the map you were before. "	2077	. "I'll try to bring you back to the map you were before. "
1760	. "Please report this to the dungeon master",	2078	. "Please report this to the dungeon master!",
1761	cf::NDI_UNIQUE | cf::NDI_RED);	2079	cf::NDI_UNIQUE | cf::NDI_RED);
1762		2080
1763	warn "ERROR in enter_exit: $@";	2081	warn "ERROR in enter_exit: $@";
1764	$self->leave_link;	2082	$self->leave_link;
1765	}	2083	}
1766	})->prio (1);	2084	})->prio (1);
…		…
1779		2097
1780	sub cf::client::send_drawinfo {	2098	sub cf::client::send_drawinfo {
1781	my ($self, $text, $flags) = @_;	2099	my ($self, $text, $flags) = @_;
1782		2100
1783	utf8::encode $text;	2101	utf8::encode $text;
1784	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2102	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1785	}	2103	}
1786		2104
		2105	=item $client->ext_event ($type, %msg)
		2106
		2107	Sends an exti event to the client.
		2108
		2109	=cut
		2110
		2111	sub cf::client::ext_event($$%) {
		2112	my ($self, $type, %msg) = @_;
		2113
		2114	$msg{msgtype} = "event_$type";
		2115	$self->send_packet ("ext " . cf::to_json \%msg);
		2116	}
1787		2117
1788	=item $success = $client->query ($flags, "text", \&cb)	2118	=item $success = $client->query ($flags, "text", \&cb)
1789		2119
1790	Queues a query to the client, calling the given callback with	2120	Queues a query to the client, calling the given callback with
1791	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2121	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
…		…
1820	# get handled first	2150	# get handled first
1821	my $queue = delete $ns->{query_queue}	2151	my $queue = delete $ns->{query_queue}
1822	or return; # be conservative, not sure how that can happen, but we saw a crash here	2152	or return; # be conservative, not sure how that can happen, but we saw a crash here
1823		2153
1824	(shift @$queue)->[1]->($msg);	2154	(shift @$queue)->[1]->($msg);
		2155	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1825		2156
1826	push @{ $ns->{query_queue} }, @$queue;	2157	push @{ $ns->{query_queue} }, @$queue;
1827		2158
1828	if (@{ $ns->{query_queue} } == @$queue) {	2159	if (@{ $ns->{query_queue} } == @$queue) {
1829	if (@$queue) {	2160	if (@$queue) {
…		…
1887		2218
1888	# here we export the classes and methods available to script code	2219	# here we export the classes and methods available to script code
1889		2220
1890	=pod	2221	=pod
1891		2222
1892	The following fucntions and emthods are available within a safe environment:	2223	The following functions and methods are available within a safe environment:
1893		2224
1894	cf::object contr pay_amount pay_player map	2225	cf::object contr pay_amount pay_player map
1895	cf::object::player player	2226	cf::object::player player
1896	cf::player peaceful	2227	cf::player peaceful
1897	cf::map trigger	2228	cf::map trigger
…		…
1982	#############################################################################	2313	#############################################################################
1983		2314
1984	=head2 EXTENSION DATABASE SUPPORT	2315	=head2 EXTENSION DATABASE SUPPORT
1985		2316
1986	Crossfire maintains a very simple database for extension use. It can	2317	Crossfire maintains a very simple database for extension use. It can
1987	currently store anything that can be serialised using Storable, which	2318	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
1988	excludes objects.	2319	convert to/from binary).
1989		2320
1990	The parameter C<$family> should best start with the name of the extension	2321	The parameter C<$family> should best start with the name of the extension
1991	using it, it should be unique.	2322	using it, it should be unique.
1992		2323
1993	=over 4	2324	=over 4
1994		2325
1995	=item $hashref = cf::db_get $family
1996
1997	Return a hashref for use by the extension C<$family>, which can be
1998	modified. After modifications, you have to call C<cf::db_dirty> or
1999	C<cf::db_sync>.
2000
2001	=item $value = cf::db_get $family => $key	2326	=item $value = cf::db_get $family => $key
2002		2327
2003	Returns a single value from the database	2328	Returns a single value from the database.
2004
2005	=item cf::db_put $family => $hashref
2006
2007	Stores the given family hashref into the database. Updates are delayed, if
2008	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2009		2329
2010	=item cf::db_put $family => $key => $value	2330	=item cf::db_put $family => $key => $value
2011		2331
2012	Stores the given C<$value> in the family hash. Updates are delayed, if you	2332	Stores the given C<$value> in the family.
2013	want the data to be synced to disk immediately, use C<cf::db_sync>.
2014
2015	=item cf::db_dirty
2016
2017	Marks the database as dirty, to be updated at a later time.
2018
2019	=item cf::db_sync
2020
2021	Immediately write the database to disk I<if it is dirty>.
2022		2333
2023	=cut	2334	=cut
2024		2335
2025	our $DB;	2336	our $DB;
2026		2337
2027	{	2338	sub db_init {
2028	my $path = cf::localdir . "/database.pst";	2339	unless ($DB) {
		2340	$DB = BDB::db_create $DB_ENV;
2029		2341
2030	sub db_load() {	2342	cf::sync_job {
2031	$DB = stat $path ? Storable::retrieve $path : { };	2343	eval {
2032	}	2344	$DB->set_flags (BDB::CHKSUM);
2033		2345
2034	my $pid;	2346	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2035		2347	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2036	sub db_save() {	2348	cf::cleanup "db_open(db): $!" if $!;
2037	waitpid $pid, 0 if $pid;	2349	};
2038	if (0 == ($pid = fork)) {	2350	cf::cleanup "db_open(db): $@" if $@;
2039	$DB->{_meta}{version} = 1;
2040	Storable::nstore $DB, "$path~";
2041	rename "$path~", $path;
2042	cf::_exit 0 if defined $pid;
2043	}	2351	};
2044	}
2045
2046	my $dirty;
2047
2048	sub db_sync() {
2049	db_save if $dirty;
2050	undef $dirty;
2051	}
2052
2053	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2054	db_sync;
2055	});	2352	}
		2353	}
2056		2354
2057	sub db_dirty() {
2058	$dirty = 1;
2059	$idle->start;
2060	}
2061
2062	sub db_get($;$) {	2355	sub db_get($$) {
2063	@_ >= 2	2356	my $key = "$_[0]/$_[1]";
2064	? $DB->{$_[0]}{$_[1]}
2065	: ($DB->{$_[0]} ||= { })
2066	}
2067		2357
		2358	cf::sync_job {
		2359	BDB::db_get $DB, undef, $key, my $data;
		2360
		2361	$! ? ()
		2362	: $data
		2363	}
		2364	}
		2365
2068	sub db_put($$;$) {	2366	sub db_put($$$) {
2069	if (@_ >= 3) {	2367	BDB::dbreq_pri 4;
2070	$DB->{$_[0]}{$_[1]} = $_[2];	2368	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
2071	} else {	2369	}
2072	$DB->{$_[0]} = $_[1];
2073	}
2074	db_dirty;
2075	}
2076		2370
2077	cf::global->attach (	2371	=item cf::cache $id => [$paths...], $processversion => $process
2078	prio => 10000,	2372
2079	on_cleanup => sub {	2373	Generic caching function that returns the value of the resource $id,
2080	db_sync;	2374	caching and regenerating as required.
		2375
		2376	This function can block.
		2377
		2378	=cut
		2379
		2380	sub cache {
		2381	my ($id, $src, $processversion, $process) = @_;
		2382
		2383	my $meta =
		2384	join "\x00",
		2385	$processversion,
		2386	map {
		2387	aio_stat $_
		2388	and Carp::croak "$_: $!";
		2389
		2390	($_, (stat _)[7,9])
		2391	} @$src;
		2392
		2393	my $dbmeta = db_get cache => "$id/meta";
		2394	if ($dbmeta ne $meta) {
		2395	# changed, we may need to process
		2396
		2397	my @data;
		2398	my $md5;
		2399
		2400	for (0 .. $#$src) {
		2401	0 <= aio_load $src->[$_], $data[$_]
		2402	or Carp::croak "$src->[$_]: $!";
2081	},	2403	}
2082	);	2404
		2405	# if processing is expensive, check
		2406	# checksum first
		2407	if (1) {
		2408	$md5 =
		2409	join "\x00",
		2410	$processversion,
		2411	map {
		2412	Coro::cede;
		2413	($src->[$_], Digest::MD5::md5_hex $data[$_])
		2414	} 0.. $#$src;
		2415
		2416
		2417	my $dbmd5 = db_get cache => "$id/md5";
		2418	if ($dbmd5 eq $md5) {
		2419	db_put cache => "$id/meta", $meta;
		2420
		2421	return db_get cache => "$id/data";
		2422	}
		2423	}
		2424
		2425	my $t1 = Time::HiRes::time;
		2426	my $data = $process->(\@data);
		2427	my $t2 = Time::HiRes::time;
		2428
		2429	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		2430
		2431	db_put cache => "$id/data", $data;
		2432	db_put cache => "$id/md5" , $md5;
		2433	db_put cache => "$id/meta", $meta;
		2434
		2435	return $data;
		2436	}
		2437
		2438	db_get cache => "$id/data"
		2439	}
		2440
		2441	=item fork_call { }, $args
		2442
		2443	Executes the given code block with the given arguments in a seperate
		2444	process, returning the results. Everything must be serialisable with
		2445	Coro::Storable. May, of course, block. Note that the executed sub may
		2446	never block itself or use any form of Event handling.
		2447
		2448	=cut
		2449
		2450	sub fork_call(&@) {
		2451	my ($cb, @args) = @_;
		2452
		2453	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		2454	# or die "socketpair: $!";
		2455	pipe my $fh1, my $fh2
		2456	or die "pipe: $!";
		2457
		2458	if (my $pid = fork) {
		2459	close $fh2;
		2460
		2461	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
		2462	$res = Coro::Storable::thaw $res;
		2463
		2464	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		2465
		2466	die $$res unless "ARRAY" eq ref $res;
		2467
		2468	return wantarray ? @$res : $res->[-1];
		2469	} else {
		2470	reset_signals;
		2471	local $SIG{__WARN__};
		2472	local $SIG{__DIE__};
		2473	eval {
		2474	close $fh1;
		2475
		2476	my @res = eval { $cb->(@args) };
		2477	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
		2478	};
		2479
		2480	warn $@ if $@;
		2481	_exit 0;
		2482	}
2083	}	2483	}
2084		2484
2085	#############################################################################	2485	#############################################################################
2086	# the server's main()	2486	# the server's init and main functions
		2487
		2488	sub load_facedata($) {
		2489	my ($path) = @_;
		2490
		2491	warn "loading facedata from $path\n";
		2492
		2493	my $facedata;
		2494	0 < aio_load $path, $facedata
		2495	or die "$path: $!";
		2496
		2497	$facedata = Coro::Storable::thaw $facedata;
		2498
		2499	$facedata->{version} == 2
		2500	or cf::cleanup "$path: version mismatch, cannot proceed.";
		2501
		2502	{
		2503	my $faces = $facedata->{faceinfo};
		2504
		2505	while (my ($face, $info) = each %$faces) {
		2506	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		2507	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
		2508	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2509	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
		2510	Coro::cede;
		2511	}
		2512
		2513	while (my ($face, $info) = each %$faces) {
		2514	next unless $info->{smooth};
		2515	my $idx = cf::face::find $face
		2516	or next;
		2517	if (my $smooth = cf::face::find $info->{smooth}) {
		2518	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2519	} else {
		2520	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2521	}
		2522	Coro::cede;
		2523	}
		2524	}
		2525
		2526	{
		2527	my $anims = $facedata->{animinfo};
		2528
		2529	while (my ($anim, $info) = each %$anims) {
		2530	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2531	Coro::cede;
		2532	}
		2533
		2534	cf::anim::invalidate_all; # d'oh
		2535	}
		2536
		2537	1
		2538	}
		2539
		2540	sub reload_regions {
		2541	load_resource_file "$MAPDIR/regions"
		2542	or die "unable to load regions file\n";
		2543	}
		2544
		2545	sub reload_facedata {
		2546	load_facedata "$DATADIR/facedata"
		2547	or die "unable to load facedata\n";
		2548	}
		2549
		2550	sub reload_archetypes {
		2551	load_resource_file "$DATADIR/archetypes"
		2552	or die "unable to load archetypes\n";
		2553	}
		2554
		2555	sub reload_treasures {
		2556	load_resource_file "$DATADIR/treasures"
		2557	or die "unable to load treasurelists\n";
		2558	}
		2559
		2560	sub reload_resources {
		2561	warn "reloading resource files...\n";
		2562
		2563	reload_regions;
		2564	reload_facedata;
		2565	#reload_archetypes;#d#
		2566	reload_archetypes;
		2567	reload_treasures;
		2568
		2569	warn "finished reloading resource files\n";
		2570	}
		2571
		2572	sub init {
		2573	reload_resources;
		2574	}
2087		2575
2088	sub cfg_load {	2576	sub cfg_load {
2089	open my $fh, "<:utf8", cf::confdir . "/config"	2577	open my $fh, "<:utf8", "$CONFDIR/config"
2090	or return;	2578	or return;
2091		2579
2092	local $/;	2580	local $/;
2093	*CFG = YAML::Syck::Load <$fh>;	2581	*CFG = YAML::Syck::Load <$fh>;
2094		2582
…		…
2108		2596
2109	sub main {	2597	sub main {
2110	# we must not ever block the main coroutine	2598	# we must not ever block the main coroutine
2111	local $Coro::idle = sub {	2599	local $Coro::idle = sub {
2112	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	2600	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		2601	(async {
2113	async { Event::one_event };	2602	Event::one_event;
		2603	})->prio (Coro::PRIO_MAX);
2114	};	2604	};
2115		2605
2116	cfg_load;	2606	cfg_load;
2117	db_load;	2607	db_init;
2118	load_extensions;	2608	load_extensions;
		2609
		2610	$TICK_WATCHER->start;
2119	Event::loop;	2611	Event::loop;
2120	}	2612	}
2121		2613
2122	#############################################################################	2614	#############################################################################
2123	# initialisation	2615	# initialisation and cleanup
2124		2616
		2617	# install some emergency cleanup handlers
		2618	BEGIN {
		2619	for my $signal (qw(INT HUP TERM)) {
		2620	Event->signal (
		2621	reentrant => 0,
		2622	data => WF_AUTOCANCEL,
		2623	signal => $signal,
		2624	prio => 0,
		2625	cb => sub {
		2626	cf::cleanup "SIG$signal";
		2627	},
		2628	);
		2629	}
		2630	}
		2631
		2632	sub emergency_save() {
		2633	my $freeze_guard = cf::freeze_mainloop;
		2634
		2635	warn "enter emergency perl save\n";
		2636
		2637	cf::sync_job {
		2638	# use a peculiar iteration method to avoid tripping on perl
		2639	# refcount bugs in for. also avoids problems with players
		2640	# and maps saved/destroyed asynchronously.
		2641	warn "begin emergency player save\n";
		2642	for my $login (keys %cf::PLAYER) {
		2643	my $pl = $cf::PLAYER{$login} or next;
		2644	$pl->valid or next;
		2645	$pl->save;
		2646	}
		2647	warn "end emergency player save\n";
		2648
		2649	warn "begin emergency map save\n";
		2650	for my $path (keys %cf::MAP) {
		2651	my $map = $cf::MAP{$path} or next;
		2652	$map->valid or next;
		2653	$map->save;
		2654	}
		2655	warn "end emergency map save\n";
		2656
		2657	warn "begin emergency database checkpoint\n";
		2658	BDB::db_env_txn_checkpoint $DB_ENV;
		2659	warn "end emergency database checkpoint\n";
		2660	};
		2661
		2662	warn "leave emergency perl save\n";
		2663	}
		2664
		2665	sub post_cleanup {
		2666	my ($make_core) = @_;
		2667
		2668	warn Carp::longmess "post_cleanup backtrace"
		2669	if $make_core;
		2670	}
		2671
2125	sub reload() {	2672	sub do_reload_perl() {
2126	# can/must only be called in main	2673	# can/must only be called in main
2127	if ($Coro::current != $Coro::main) {	2674	if ($Coro::current != $Coro::main) {
2128	warn "can only reload from main coroutine\n";	2675	warn "can only reload from main coroutine";
2129	return;	2676	return;
2130	}	2677	}
2131		2678
2132	warn "reloading...";	2679	warn "reloading...";
2133		2680
2134	my $guard = freeze_mainloop;	2681	warn "entering sync_job";
		2682
		2683	cf::sync_job {
		2684	cf::write_runtime; # external watchdog should not bark
2135	cf::emergency_save;	2685	cf::emergency_save;
		2686	cf::write_runtime; # external watchdog should not bark
2136		2687
2137	eval {	2688	warn "syncing database to disk";
		2689	BDB::db_env_txn_checkpoint $DB_ENV;
		2690
2138	# if anything goes wrong in here, we should simply crash as we already saved	2691	# if anything goes wrong in here, we should simply crash as we already saved
2139		2692
2140	# cancel all watchers	2693	warn "cancelling all WF_AUTOCANCEL watchers";
2141	for (Event::all_watchers) {	2694	for (Event::all_watchers) {
2142	$_->cancel if $_->data & WF_AUTOCANCEL;	2695	$_->cancel if $_->data & WF_AUTOCANCEL;
2143	}	2696	}
2144		2697
		2698	warn "flushing outstanding aio requests";
		2699	for (;;) {
		2700	BDB::flush;
		2701	IO::AIO::flush;
		2702	Coro::cede;
		2703	last unless IO::AIO::nreqs || BDB::nreqs;
		2704	warn "iterate...";
		2705	}
		2706
		2707	++$RELOAD;
		2708
2145	# cancel all extension coros	2709	warn "cancelling all extension coros";
2146	$_->cancel for values %EXT_CORO;	2710	$_->cancel for values %EXT_CORO;
2147	%EXT_CORO = ();	2711	%EXT_CORO = ();
2148		2712
2149	# unload all extensions	2713	warn "removing commands";
2150	for (@exts) {	2714	%COMMAND = ();
		2715
		2716	warn "removing ext commands";
		2717	%EXTCMD = ();
		2718
		2719	warn "unloading/nuking all extensions";
		2720	for my $pkg (@EXTS) {
2151	warn "unloading <$_>";	2721	warn "... unloading $pkg";
2152	unload_extension $_;	2722
		2723	if (my $cb = $pkg->can ("unload")) {
		2724	eval {
		2725	$cb->($pkg);
		2726	1
		2727	} or warn "$pkg unloaded, but with errors: $@";
2153	}	2728	}
2154		2729
		2730	warn "... nuking $pkg";
		2731	Symbol::delete_package $pkg;
		2732	}
		2733
2155	# unload all modules loaded from $LIBDIR	2734	warn "unloading all perl modules loaded from $LIBDIR";
2156	while (my ($k, $v) = each %INC) {	2735	while (my ($k, $v) = each %INC) {
2157	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2736	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2158		2737
2159	warn "removing <$k>";	2738	warn "... unloading $k";
2160	delete $INC{$k};	2739	delete $INC{$k};
2161		2740
2162	$k =~ s/\.pm$//;	2741	$k =~ s/\.pm$//;
2163	$k =~ s/\//::/g;	2742	$k =~ s/\//::/g;
2164		2743
…		…
2167	}	2746	}
2168		2747
2169	Symbol::delete_package $k;	2748	Symbol::delete_package $k;
2170	}	2749	}
2171		2750
2172	# sync database to disk
2173	cf::db_sync;
2174	IO::AIO::flush;
2175
2176	# get rid of safe::, as good as possible	2751	warn "getting rid of safe::, as good as possible";
2177	Symbol::delete_package "safe::$_"	2752	Symbol::delete_package "safe::$_"
2178	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2753	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2179		2754
2180	# remove register_script_function callbacks
2181	# TODO
2182
2183	# unload cf.pm "a bit"	2755	warn "unloading cf.pm \"a bit\"";
2184	delete $INC{"cf.pm"};	2756	delete $INC{"cf.pm"};
		2757	delete $INC{"cf/pod.pm"};
2185		2758
2186	# don't, removes xs symbols, too,	2759	# don't, removes xs symbols, too,
2187	# and global variables created in xs	2760	# and global variables created in xs
2188	#Symbol::delete_package __PACKAGE__;	2761	#Symbol::delete_package __PACKAGE__;
2189		2762
2190	# reload cf.pm	2763	warn "unload completed, starting to reload now";
		2764
2191	warn "reloading cf.pm";	2765	warn "reloading cf.pm";
2192	require cf;	2766	require cf;
2193	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2767	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2194		2768
2195	# load config and database again	2769	warn "loading config and database again";
2196	cf::cfg_load;	2770	cf::cfg_load;
2197	cf::db_load;
2198		2771
2199	# load extensions
2200	warn "load extensions";	2772	warn "loading extensions";
2201	cf::load_extensions;	2773	cf::load_extensions;
2202		2774
2203	# reattach attachments to objects	2775	warn "reattaching attachments to objects/players";
2204	warn "reattach";	2776	_global_reattach; # objects, sockets
2205	_global_reattach;	2777	warn "reattaching attachments to maps";
2206	reattach $_ for values %MAP;	2778	reattach $_ for values %MAP;
2207	};	2779	warn "reattaching attachments to players";
		2780	reattach $_ for values %PLAYER;
2208		2781
2209	if ($@) {	2782	warn "leaving sync_job";
		2783
		2784	1
		2785	} or do {
2210	warn $@;	2786	warn $@;
2211	warn "error while reloading, exiting.";	2787	warn "error while reloading, exiting.";
2212	exit 1;	2788	exit 1;
2213	}	2789	};
2214		2790
2215	warn "reloaded successfully";	2791	warn "reloaded";
2216	};	2792	};
2217		2793
2218	#############################################################################	2794	our $RELOAD_WATCHER; # used only during reload
2219		2795
2220	unless ($LINK_MAP) {	2796	sub reload_perl() {
2221	$LINK_MAP = cf::map::new;	2797	# doing reload synchronously and two reloads happen back-to-back,
		2798	# coro crashes during coro_state_free->destroy here.
2222		2799
2223	$LINK_MAP->width (41);	2800	$RELOAD_WATCHER ||= Event->timer (
2224	$LINK_MAP->height (41);	2801	reentrant => 0,
2225	$LINK_MAP->alloc;
2226	$LINK_MAP->path ("{link}");
2227	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2228	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2229
2230	# dirty hack because... archetypes are not yet loaded
2231	Event->timer (
2232	after => 10,	2802	after => 0,
		2803	data => WF_AUTOCANCEL,
2233	cb => sub {	2804	cb => sub {
2234	$_[0]->w->cancel;	2805	do_reload_perl;
2235		2806	undef $RELOAD_WATCHER;
2236	# provide some exits "home"
2237	my $exit = cf::object::new "exit";
2238
2239	$exit->slaying ($EMERGENCY_POSITION->[0]);
2240	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2241	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2242
2243	$LINK_MAP->insert ($exit->clone, 19, 19);
2244	$LINK_MAP->insert ($exit->clone, 19, 20);
2245	$LINK_MAP->insert ($exit->clone, 19, 21);
2246	$LINK_MAP->insert ($exit->clone, 20, 19);
2247	$LINK_MAP->insert ($exit->clone, 20, 21);
2248	$LINK_MAP->insert ($exit->clone, 21, 19);
2249	$LINK_MAP->insert ($exit->clone, 21, 20);
2250	$LINK_MAP->insert ($exit->clone, 21, 21);
2251
2252	$exit->destroy;
2253	});	2807	},
2254		2808	);
2255	$LINK_MAP->{deny_save} = 1;
2256	$LINK_MAP->{deny_reset} = 1;
2257
2258	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2259	}	2809	}
2260
2261	register "<global>", __PACKAGE__;
2262		2810
2263	register_command "reload" => sub {	2811	register_command "reload" => sub {
2264	my ($who, $arg) = @_;	2812	my ($who, $arg) = @_;
2265		2813
2266	if ($who->flag (FLAG_WIZ)) {	2814	if ($who->flag (FLAG_WIZ)) {
2267	$who->message ("start of reload.");
2268	reload;
2269	$who->message ("end of reload.");	2815	$who->message ("reloading server.");
		2816	async { reload_perl };
2270	}	2817	}
2271	};	2818	};
2272		2819
2273	unshift @INC, $LIBDIR;	2820	unshift @INC, $LIBDIR;
2274		2821
		2822	my $bug_warning = 0;
		2823
		2824	our @WAIT_FOR_TICK;
		2825	our @WAIT_FOR_TICK_BEGIN;
		2826
		2827	sub wait_for_tick {
		2828	return unless $TICK_WATCHER->is_active;
		2829	return if $Coro::current == $Coro::main;
		2830
		2831	my $signal = new Coro::Signal;
		2832	push @WAIT_FOR_TICK, $signal;
		2833	$signal->wait;
		2834	}
		2835
		2836	sub wait_for_tick_begin {
		2837	return unless $TICK_WATCHER->is_active;
		2838	return if $Coro::current == $Coro::main;
		2839
		2840	my $signal = new Coro::Signal;
		2841	push @WAIT_FOR_TICK_BEGIN, $signal;
		2842	$signal->wait;
		2843	}
		2844
		2845	my $min = 1e6;#d#
		2846	my $avg = 10;
2275	$TICK_WATCHER = Event->timer (	2847	$TICK_WATCHER = Event->timer (
2276	reentrant => 0,	2848	reentrant => 0,
		2849	parked => 1,
2277	prio => 0,	2850	prio => 0,
2278	at => $NEXT_TICK || $TICK,	2851	at => $NEXT_TICK || $TICK,
2279	data => WF_AUTOCANCEL,	2852	data => WF_AUTOCANCEL,
2280	cb => sub {	2853	cb => sub {
		2854	if ($Coro::current != $Coro::main) {
		2855	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2856	unless ++$bug_warning > 10;
		2857	return;
		2858	}
		2859
		2860	$NOW = $tick_start = Event::time;
		2861
2281	cf::server_tick; # one server iteration	2862	cf::server_tick; # one server iteration
		2863
		2864	0 && sync_job {#d#
		2865	for(1..10) {
		2866	my $t = Event::time;
		2867	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		2868	or die;
		2869
		2870	$map->width (50);
		2871	$map->height (50);
		2872	$map->alloc;
		2873	$map->_load_objects ("/tmp/x.map", 1);
		2874	my $t = Event::time - $t;
		2875
		2876	#next unless $t < 0.0013;#d#
		2877	if ($t < $min) {
		2878	$min = $t;
		2879	}
		2880	$avg = $avg * 0.99 + $t * 0.01;
		2881	}
		2882	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		2883	exit 0;
		2884	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
		2885	};
		2886
2282	$RUNTIME += $TICK;	2887	$RUNTIME += $TICK;
2283	$NEXT_TICK += $TICK;	2888	$NEXT_TICK += $TICK;
2284		2889
		2890	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		2891	$NEXT_RUNTIME_WRITE = $NOW + 10;
		2892	Coro::async_pool {
		2893	write_runtime
		2894	or warn "ERROR: unable to write runtime file: $!";
		2895	};
		2896	}
		2897
		2898	# my $AFTER = Event::time;
		2899	# warn $AFTER - $NOW;#d#
		2900
		2901	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		2902	$sig->send;
		2903	}
		2904	while (my $sig = shift @WAIT_FOR_TICK) {
		2905	$sig->send;
		2906	}
		2907
		2908	$NOW = Event::time;
		2909
2285	# if we are delayed by four ticks or more, skip them all	2910	# if we are delayed by four ticks or more, skip them all
2286	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2911	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2287		2912
2288	$TICK_WATCHER->at ($NEXT_TICK);	2913	$TICK_WATCHER->at ($NEXT_TICK);
2289	$TICK_WATCHER->start;	2914	$TICK_WATCHER->start;
		2915
		2916	$LOAD = ($NOW - $tick_start) / $TICK;
		2917	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		2918
		2919	_post_tick;
		2920
		2921
2290	},	2922	},
2291	);	2923	);
2292		2924
		2925	{
2293	IO::AIO::max_poll_time $TICK * 0.2;	2926	BDB::max_poll_time $TICK * 0.1;
2294		2927	$BDB_POLL_WATCHER = Event->io (
2295	Event->io (	2928	reentrant => 0,
2296	fd => IO::AIO::poll_fileno,	2929	fd => BDB::poll_fileno,
2297	poll => 'r',	2930	poll => 'r',
2298	prio => 5,	2931	prio => 0,
2299	data => WF_AUTOCANCEL,
2300	cb => \&IO::AIO::poll_cb,
2301	);
2302
2303	Event->timer (
2304	data => WF_AUTOCANCEL,	2932	data => WF_AUTOCANCEL,
2305	after => 0,	2933	cb => \&BDB::poll_cb,
2306	interval => 10,	2934	);
2307	cb => sub {	2935	BDB::min_parallel 8;
2308	(Coro::unblock_sub {	2936
2309	write_runtime	2937	BDB::set_sync_prepare {
2310	or warn "ERROR: unable to write runtime file: $!";	2938	my $status;
		2939	my $current = $Coro::current;
		2940	(
		2941	sub {
		2942	$status = $!;
		2943	$current->ready; undef $current;
		2944	},
		2945	sub {
		2946	Coro::schedule while defined $current;
		2947	$! = $status;
		2948	},
		2949	)
		2950	};
		2951
		2952	unless ($DB_ENV) {
		2953	$DB_ENV = BDB::db_env_create;
		2954
		2955	cf::sync_job {
		2956	eval {
		2957	BDB::db_env_open
		2958	$DB_ENV,
		2959	$BDBDIR,
		2960	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		2961	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		2962	0666;
		2963
		2964	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		2965
		2966	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		2967	$DB_ENV->set_lk_detect;
		2968	};
		2969
		2970	cf::cleanup "db_env_open(db): $@" if $@;
2311	})->();	2971	};
2312	},	2972	}
2313	);	2973	}
		2974
		2975	{
		2976	IO::AIO::min_parallel 8;
		2977
		2978	undef $Coro::AIO::WATCHER;
		2979	IO::AIO::max_poll_time $TICK * 0.1;
		2980	$AIO_POLL_WATCHER = Event->io (
		2981	reentrant => 0,
		2982	data => WF_AUTOCANCEL,
		2983	fd => IO::AIO::poll_fileno,
		2984	poll => 'r',
		2985	prio => 6,
		2986	cb => \&IO::AIO::poll_cb,
		2987	);
		2988	}
		2989
		2990	my $_log_backtrace;
		2991
		2992	sub _log_backtrace {
		2993	my ($msg, @addr) = @_;
		2994
		2995	$msg =~ s/\n//;
		2996
		2997	# limit the # of concurrent backtraces
		2998	if ($_log_backtrace < 2) {
		2999	++$_log_backtrace;
		3000	async {
		3001	my @bt = fork_call {
		3002	@addr = map { sprintf "%x", $_ } @addr;
		3003	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3004	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3005	or die "addr2line: $!";
		3006
		3007	my @funcs;
		3008	my @res = <$fh>;
		3009	chomp for @res;
		3010	while (@res) {
		3011	my ($func, $line) = splice @res, 0, 2, ();
		3012	push @funcs, "[$func] $line";
		3013	}
		3014
		3015	@funcs
		3016	};
		3017
		3018	LOG llevInfo, "[ABT] $msg\n";
		3019	LOG llevInfo, "[ABT] $_\n" for @bt;
		3020	--$_log_backtrace;
		3021	};
		3022	} else {
		3023	LOG llevInfo, "[ABT] $msg\n";
		3024	LOG llevInfo, "[ABT] [suppressed]\n";
		3025	}
		3026	}
		3027
		3028	# load additional modules
		3029	use cf::pod;
2314		3030
2315	END { cf::emergency_save }	3031	END { cf::emergency_save }
2316		3032
2317	1	3033	1
2318		3034

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