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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.144 by root, Sun Jan 7 18:01:10 2007 UTC vs.
Revision 1.275 by root, Thu Jun 7 19:12:22 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;
22	use IO::AIO 2.31 ();
23	use YAML::Syck ();	29	use YAML::Syck ();
		30	use IO::AIO 2.32 ();
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, "cfperl: $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
1086		1009
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
		1014	sub playerdir($) {
		1015	"$PLAYERDIR/"
		1016	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1017	}
		1018
1091	sub path($) {	1019	sub path($) {
1092	sprintf "%s/%s/%s/%s.pl",	1020	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
1093	cf::localdir, cf::playerdir,	1021
1094	(ref $_[0] ? $_[0]->ob->name : $_[0]) x 2	1022	(playerdir $login) . "/playerdata"
1095	}	1023	}
1096		1024
1097	sub find_active($) {	1025	sub find_active($) {
1098	$cf::PLAYER{$_[0]}	1026	$cf::PLAYER{$_[0]}
1099	and $cf::PLAYER{$_[0]}->active	1027	and $cf::PLAYER{$_[0]}->active
…		…
1102		1030
1103	sub exists($) {	1031	sub exists($) {
1104	my ($login) = @_;	1032	my ($login) = @_;
1105		1033
1106	$cf::PLAYER{$login}	1034	$cf::PLAYER{$login}
1107	or cf::sync_job { !aio_stat $login }	1035	or cf::sync_job { !aio_stat path $login }
1108	}	1036	}
1109		1037
1110	sub find($) {	1038	sub find($) {
1111	return $cf::PLAYER{$_[0]} || do {	1039	return $cf::PLAYER{$_[0]} || do {
1112	my $login = $_[0];	1040	my $login = $_[0];
1113		1041
1114	my $guard = cf::lock_acquire "user_find:$login";	1042	my $guard = cf::lock_acquire "user_find:$login";
1115		1043
1116	$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	}
1117	};	1056	}
1118	}	1057	}
1119		1058
1120	sub save($) {	1059	sub save($) {
1121	my ($pl) = @_;	1060	my ($pl) = @_;
1122		1061
…		…
1124		1063
1125	my $path = path $pl;	1064	my $path = path $pl;
1126	my $guard = cf::lock_acquire "user_save:$path";	1065	my $guard = cf::lock_acquire "user_save:$path";
1127		1066
1128	return if $pl->{deny_save};	1067	return if $pl->{deny_save};
		1068
		1069	aio_mkdir playerdir $pl, 0770;
1129	$pl->{last_save} = $cf::RUNTIME;	1070	$pl->{last_save} = $cf::RUNTIME;
1130		1071
1131	Coro::cede;
1132	$pl->save_pl ($path);	1072	$pl->save_pl ($path);
1133	Coro::cede;	1073	Coro::cede;
1134	}	1074	}
1135		1075
1136	sub new($) {	1076	sub new($) {
…		…
1144	$cf::PLAYER{$login} = $self;	1084	$cf::PLAYER{$login} = $self;
1145		1085
1146	$self	1086	$self
1147	}	1087	}
1148		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
		1096	sub quit_character {
		1097	my ($pl) = @_;
		1098
		1099	my $name = $pl->ob->name;
		1100
		1101	$pl->{deny_save} = 1;
		1102	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1103
		1104	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1105	$pl->deactivate;
		1106	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1107	$pl->ns->destroy if $pl->ns;
		1108
		1109	my $path = playerdir $pl;
		1110	my $temp = "$path~$cf::RUNTIME~deleting~";
		1111	aio_rename $path, $temp;
		1112	delete $cf::PLAYER{$pl->ob->name};
		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
		1120	IO::AIO::aio_rmtree $temp;
		1121	}
		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
1149	=item $player->ext_reply ($msgid, $msgtype, %msg)	1190	=item $player->ext_reply ($msgid, %msg)
1150		1191
1151	Sends an ext reply to the player.	1192	Sends an ext reply to the player.
1152		1193
1153	=cut	1194	=cut
1154		1195
1155	sub ext_reply($$$%) {	1196	sub ext_reply($$%) {
1156	my ($self, $id, %msg) = @_;	1197	my ($self, $id, %msg) = @_;
1157		1198
1158	$msg{msgid} = $id;	1199	$msg{msgid} = $id;
1159		1200
1160	$self->send ("ext " . cf::to_json \%msg);	1201	$self->send ("ext " . cf::to_json \%msg);
1161	}	1202	}
1162		1203
1163	package cf;	1204	=item $player->ext_event ($type, %msg)
		1205
		1206	Sends an ext event to the client.
		1207
		1208	=cut
		1209
		1210	sub ext_event($$%) {
		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	}
1164		1244
1165	=back	1245	=back
1166
1167		1246
1168	=head3 cf::map	1247	=head3 cf::map
1169		1248
1170	=over 4	1249	=over 4
1171		1250
…		…
1174	package cf::map;	1253	package cf::map;
1175		1254
1176	use Fcntl;	1255	use Fcntl;
1177	use Coro::AIO;	1256	use Coro::AIO;
1178		1257
		1258	use overload
		1259	'""' => \&as_string,
		1260	fallback => 1;
		1261
1179	our $MAX_RESET = 3600;	1262	our $MAX_RESET = 3600;
1180	our $DEFAULT_RESET = 3000;	1263	our $DEFAULT_RESET = 3000;
1181		1264
1182	sub generate_random_map {	1265	sub generate_random_map {
1183	my ($path, $rmp) = @_;	1266	my ($self, $rmp) = @_;
1184
1185	# mit "rum" bekleckern, nicht	1267	# mit "rum" bekleckern, nicht
1186	cf::map::_create_random_map	1268	$self->_create_random_map (
1187	$path,
1188	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1269	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1189	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1270	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1190	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1271	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1191	$rmp->{exit_on_final_map},	1272	$rmp->{exit_on_final_map},
1192	$rmp->{xsize}, $rmp->{ysize},	1273	$rmp->{xsize}, $rmp->{ysize},
1193	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1274	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1194	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1275	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1195	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1276	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1196	$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},
1197	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1278	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1198	(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
		1311	$self->SUPER::thawer_merge ($merge);
		1312	}
		1313
		1314	sub normalise {
		1315	my ($path, $base) = @_;
		1316
		1317	$path = "$path"; # make sure its a string
		1318
		1319	$path =~ s/\.map$//;
		1320
		1321	# map plan:
		1322	#
		1323	# /! non-realised random map exit (special hack!)
		1324	# {... are special paths that are not being touched
		1325	# ?xxx/... are special absolute paths
		1326	# ?random/... random maps
		1327	# /... normal maps
		1328	# ~user/... per-player map of a specific user
		1329
		1330	$path =~ s/$PATH_SEP/\//go;
		1331
		1332	# treat it as relative path if it starts with
		1333	# something that looks reasonable
		1334	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1335	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1336
		1337	$base =~ s{[^/]+/?$}{};
		1338	$path = "$base/$path";
		1339	}
		1340
		1341	for ($path) {
		1342	redo if s{//}{/};
		1343	redo if s{/\.?/}{/};
		1344	redo if s{/[^/]+/\.\./}{/};
		1345	}
		1346
		1347	$path
		1348	}
		1349
		1350	sub new_from_path {
		1351	my (undef, $path, $base) = @_;
		1352
		1353	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1354
		1355	$path = normalise $path, $base;
		1356
		1357	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1358	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1359	my $self = bless cf::map::new, $pkg;
		1360	$self->{path} = $path; $self->path ($path);
		1361	$self->init; # pass $1 etc.
		1362	return $self;
		1363	}
		1364	}
		1365
		1366	Carp::carp "unable to resolve path '$path' (base '$base').";
		1367	()
		1368	}
		1369
		1370	sub init {
		1371	my ($self) = @_;
		1372
		1373	$self
		1374	}
		1375
		1376	sub as_string {
		1377	my ($self) = @_;
		1378
		1379	"$self->{path}"
		1380	}
		1381
		1382	# the displayed name, this is a one way mapping
		1383	sub visible_name {
		1384	&as_string
		1385	}
		1386
		1387	# the original (read-only) location
		1388	sub load_path {
		1389	my ($self) = @_;
		1390
		1391	"$MAPDIR/$self->{path}.map"
		1392	}
		1393
		1394	# the temporary/swap location
		1395	sub save_path {
		1396	my ($self) = @_;
		1397
		1398	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1399	"$TMPDIR/$path.map"
		1400	}
		1401
		1402	# the unique path, undef == no special unique path
		1403	sub uniq_path {
		1404	my ($self) = @_;
		1405
		1406	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1407	"$UNIQUEDIR/$path"
1199	}	1408	}
1200		1409
1201	# and all this just because we cannot iterate over	1410	# and all this just because we cannot iterate over
1202	# all maps in C++...	1411	# all maps in C++...
1203	sub change_all_map_light {	1412	sub change_all_map_light {
…		…
1205		1414
1206	$_->change_map_light ($change)	1415	$_->change_map_light ($change)
1207	for grep $_->outdoor, values %cf::MAP;	1416	for grep $_->outdoor, values %cf::MAP;
1208	}	1417	}
1209		1418
		1419	sub decay_objects {
		1420	my ($self) = @_;
		1421
		1422	return if $self->{deny_reset};
		1423
		1424	$self->do_decay_objects;
		1425	}
		1426
		1427	sub unlink_save {
		1428	my ($self) = @_;
		1429
		1430	utf8::encode (my $save = $self->save_path);
		1431	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1432	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1433	}
		1434
1210	sub try_load_header($) {	1435	sub load_header_from($) {
1211	my ($path) = @_;	1436	my ($self, $path) = @_;
1212		1437
1213	utf8::encode $path;	1438	utf8::encode $path;
1214	aio_open $path, O_RDONLY, 0	1439	#aio_open $path, O_RDONLY, 0
		1440	# or return;
		1441
		1442	$self->_load_header ($path)
1215	or return;	1443	or return;
1216		1444
1217	my $map = cf::map::new	1445	$self->{load_path} = $path;
		1446
		1447	1
		1448	}
		1449
		1450	sub load_header_orig {
		1451	my ($self) = @_;
		1452
		1453	$self->load_header_from ($self->load_path)
		1454	}
		1455
		1456	sub load_header_temp {
		1457	my ($self) = @_;
		1458
		1459	$self->load_header_from ($self->save_path)
		1460	}
		1461
		1462	sub prepare_temp {
		1463	my ($self) = @_;
		1464
		1465	$self->last_access ((delete $self->{last_access})
		1466	|| $cf::RUNTIME); #d#
		1467	# safety
		1468	$self->{instantiate_time} = $cf::RUNTIME
		1469	if $self->{instantiate_time} > $cf::RUNTIME;
		1470	}
		1471
		1472	sub prepare_orig {
		1473	my ($self) = @_;
		1474
		1475	$self->{load_original} = 1;
		1476	$self->{instantiate_time} = $cf::RUNTIME;
		1477	$self->last_access ($cf::RUNTIME);
		1478	$self->instantiate;
		1479	}
		1480
		1481	sub load_header {
		1482	my ($self) = @_;
		1483
		1484	if ($self->load_header_temp) {
		1485	$self->prepare_temp;
		1486	} else {
		1487	$self->load_header_orig
1218	or return;	1488	or return;
		1489	$self->prepare_orig;
		1490	}
1219		1491
1220	# for better error messages only, will be overwritten	1492	$self->{deny_reset} = 1
1221	$map->path ($path);	1493	if $self->no_reset;
1222		1494
1223	$map->load_header ($path)	1495	$self->default_region (cf::region::find_by_path $self->{path})
1224	or return;	1496	unless $self->default_region;
1225		1497
1226	$map->{load_path} = $path;	1498	1
1227
1228	$map
1229	}	1499	}
1230		1500
1231	sub find;	1501	sub find;
1232	sub find {	1502	sub find {
1233	my ($path, $origin) = @_;	1503	my ($path, $origin) = @_;
1234		1504
1235	#warn "find<$path,$origin>\n";#d#
1236
1237	$path = new cf::path $path, $origin && $origin->path;	1505	$path = normalise $path, $origin && $origin->path;
1238	my $key = $path->as_string;
1239		1506
1240	cf::lock_wait "map_find:$key";	1507	cf::lock_wait "map_find:$path";
1241		1508
1242	$cf::MAP{$key} || do {	1509	$cf::MAP{$path} || do {
1243	my $guard = cf::lock_acquire "map_find:$key";	1510	my $guard = cf::lock_acquire "map_find:$path";
1244		1511	my $map = new_from_path cf::map $path
1245	# do it the slow way
1246	my $map = try_load_header $path->save_path;
1247
1248	Coro::cede;
1249
1250	if ($map) {
1251	$map->last_access ((delete $map->{last_access})
1252	|| $cf::RUNTIME); #d#
1253	# safety
1254	$map->{instantiate_time} = $cf::RUNTIME
1255	if $map->{instantiate_time} > $cf::RUNTIME;
1256	} else {
1257	if (my $rmp = $path->random_map_params) {
1258	$map = generate_random_map $key, $rmp;
1259	} else {
1260	$map = try_load_header $path->load_path;
1261	}
1262
1263	$map or return;	1512	or return;
1264		1513
1265	$map->{load_original} = 1;
1266	$map->{instantiate_time} = $cf::RUNTIME;
1267	$map->last_access ($cf::RUNTIME);
1268	$map->instantiate;
1269
1270	# per-player maps become, after loading, normal maps
1271	$map->per_player (0) if $path->{user_rel};
1272	}
1273
1274	$map->path ($key);
1275	$map->{path} = $path;
1276	$map->{last_save} = $cf::RUNTIME;	1514	$map->{last_save} = $cf::RUNTIME;
1277		1515
1278	Coro::cede;	1516	$map->load_header
		1517	or return;
1279		1518
1280	if ($map->should_reset) {	1519	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1520	# doing this can freeze the server in a sync job, obviously
		1521	#$cf::WAIT_FOR_TICK->wait;
1281	$map->reset;	1522	$map->reset;
1282	undef $guard;	1523	undef $guard;
1283	$map = find $path	1524	return find $path;
1284	or return;
1285	}	1525	}
1286		1526
1287	$cf::MAP{$key} = $map	1527	$cf::MAP{$path} = $map
1288	}	1528	}
1289	}	1529	}
		1530
		1531	sub pre_load { }
		1532	sub post_load { }
1290		1533
1291	sub load {	1534	sub load {
1292	my ($self) = @_;	1535	my ($self) = @_;
1293		1536
		1537	local $self->{deny_reset} = 1; # loading can take a long time
		1538
1294	my $path = $self->{path};	1539	my $path = $self->{path};
		1540
		1541	{
1295	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1542	my $guard = cf::lock_acquire "map_load:$path";
1296		1543
1297	return if $self->in_memory != cf::MAP_SWAPPED;	1544	return if $self->in_memory != cf::MAP_SWAPPED;
1298		1545
1299	$self->in_memory (cf::MAP_LOADING);	1546	$self->in_memory (cf::MAP_LOADING);
1300		1547
1301	$self->alloc;	1548	$self->alloc;
		1549
		1550	$self->pre_load;
		1551	Coro::cede;
		1552
1302	$self->load_objects ($self->{load_path}, 1)	1553	$self->_load_objects ($self->{load_path}, 1)
1303	or return;	1554	or return;
1304		1555
1305	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1556	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1306	if delete $self->{load_original};	1557	if delete $self->{load_original};
1307		1558
1308	if (my $uniq = $path->uniq_path) {	1559	if (my $uniq = $self->uniq_path) {
1309	utf8::encode $uniq;	1560	utf8::encode $uniq;
1310	if (aio_open $uniq, O_RDONLY, 0) {	1561	if (aio_open $uniq, O_RDONLY, 0) {
1311	$self->clear_unique_items;	1562	$self->clear_unique_items;
1312	$self->load_objects ($uniq, 0);	1563	$self->_load_objects ($uniq, 0);
1313	}	1564	}
1314	}	1565	}
1315		1566
1316	Coro::cede;	1567	Coro::cede;
1317
1318	# now do the right thing for maps	1568	# now do the right thing for maps
1319	$self->link_multipart_objects;	1569	$self->link_multipart_objects;
1320
1321	if ($self->{path}->is_style_map) {
1322	$self->{deny_save} = 1;
1323	$self->{deny_reset} = 1;
1324	} else {
1325	$self->fix_auto_apply;
1326	$self->decay_objects;
1327	$self->update_buttons;
1328	$self->set_darkness_map;
1329	$self->difficulty ($self->estimate_difficulty)	1570	$self->difficulty ($self->estimate_difficulty)
1330	unless $self->difficulty;	1571	unless $self->difficulty;
		1572	Coro::cede;
		1573
		1574	unless ($self->{deny_activate}) {
		1575	$self->decay_objects;
		1576	$self->fix_auto_apply;
		1577	$self->update_buttons;
		1578	Coro::cede;
		1579	$self->set_darkness_map;
		1580	Coro::cede;
1331	$self->activate;	1581	$self->activate;
1332	}	1582	}
1333		1583
1334	Coro::cede;
1335
1336	$self->in_memory (cf::MAP_IN_MEMORY);	1584	$self->in_memory (cf::MAP_IN_MEMORY);
		1585	}
		1586
		1587	$self->post_load;
		1588	}
		1589
		1590	sub customise_for {
		1591	my ($self, $ob) = @_;
		1592
		1593	return find "~" . $ob->name . "/" . $self->{path}
		1594	if $self->per_player;
		1595
		1596	# return find "?party/" . $ob->name . "/" . $self->{path}
		1597	# if $self->per_party;
		1598
		1599	$self
		1600	}
		1601
		1602	# find and load all maps in the 3x3 area around a map
		1603	sub load_diag {
		1604	my ($map) = @_;
		1605
		1606	my @diag; # diagonal neighbours
		1607
		1608	for (0 .. 3) {
		1609	my $neigh = $map->tile_path ($_)
		1610	or next;
		1611	$neigh = find $neigh, $map
		1612	or next;
		1613	$neigh->load;
		1614
		1615	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1616	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1617	}
		1618
		1619	for (@diag) {
		1620	my $neigh = find @$_
		1621	or next;
		1622	$neigh->load;
		1623	}
1337	}	1624	}
1338		1625
1339	sub find_sync {	1626	sub find_sync {
1340	my ($path, $origin) = @_;	1627	my ($path, $origin) = @_;
1341		1628
1342	cf::sync_job { cf::map::find $path, $origin }	1629	cf::sync_job { find $path, $origin }
1343	}	1630	}
1344		1631
1345	sub do_load_sync {	1632	sub do_load_sync {
1346	my ($map) = @_;	1633	my ($map) = @_;
1347		1634
1348	cf::sync_job { $map->load };	1635	cf::sync_job { $map->load };
1349	}	1636	}
1350		1637
		1638	our %MAP_PREFETCH;
		1639	our $MAP_PREFETCHER = undef;
		1640
		1641	sub find_async {
		1642	my ($path, $origin) = @_;
		1643
		1644	$path = normalise $path, $origin && $origin->{path};
		1645
		1646	if (my $map = $cf::MAP{$path}) {
		1647	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1648	}
		1649
		1650	undef $MAP_PREFETCH{$path};
		1651	$MAP_PREFETCHER ||= cf::async {
		1652	while (%MAP_PREFETCH) {
		1653	for my $path (keys %MAP_PREFETCH) {
		1654	my $map = find $path
		1655	or next;
		1656	$map->load;
		1657
		1658	delete $MAP_PREFETCH{$path};
		1659	}
		1660	}
		1661	undef $MAP_PREFETCHER;
		1662	};
		1663	$MAP_PREFETCHER->prio (6);
		1664
		1665	()
		1666	}
		1667
1351	sub save {	1668	sub save {
1352	my ($self) = @_;	1669	my ($self) = @_;
1353		1670
1354	my $lock = cf::lock_acquire "map_data:" . $self->path;	1671	my $lock = cf::lock_acquire "map_data:" . $self->path;
1355		1672
1356	$self->{last_save} = $cf::RUNTIME;	1673	$self->{last_save} = $cf::RUNTIME;
1357		1674
1358	return unless $self->dirty;	1675	return unless $self->dirty;
1359		1676
1360	my $save = $self->{path}->save_path; utf8::encode $save;	1677	my $save = $self->save_path; utf8::encode $save;
1361	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	1678	my $uniq = $self->uniq_path; utf8::encode $uniq;
1362		1679
1363	$self->{load_path} = $save;	1680	$self->{load_path} = $save;
1364		1681
1365	return if $self->{deny_save};	1682	return if $self->{deny_save};
1366		1683
…		…
1369	cf::async {	1686	cf::async {
1370	$_->contr->save for $self->players;	1687	$_->contr->save for $self->players;
1371	};	1688	};
1372		1689
1373	if ($uniq) {	1690	if ($uniq) {
1374	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1691	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1375	$self->save_objects ($uniq, cf::IO_UNIQUES);	1692	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1376	} else {	1693	} else {
1377	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1694	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1378	}	1695	}
1379	}	1696	}
1380		1697
1381	sub swap_out {	1698	sub swap_out {
1382	my ($self) = @_;	1699	my ($self) = @_;
…		…
1396		1713
1397	sub reset_at {	1714	sub reset_at {
1398	my ($self) = @_;	1715	my ($self) = @_;
1399		1716
1400	# TODO: safety, remove and allow resettable per-player maps	1717	# TODO: safety, remove and allow resettable per-player maps
1401	return 1e99 if $self->{path}{user_rel};
1402	return 1e99 if $self->{deny_reset};	1718	return 1e99 if $self->{deny_reset};
1403		1719
1404	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1720	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1405	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1721	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1406		1722
…		…
1411	my ($self) = @_;	1727	my ($self) = @_;
1412		1728
1413	$self->reset_at <= $cf::RUNTIME	1729	$self->reset_at <= $cf::RUNTIME
1414	}	1730	}
1415		1731
1416	sub unlink_save {
1417	my ($self) = @_;
1418
1419	utf8::encode (my $save = $self->{path}->save_path);
1420	aioreq_pri 3; IO::AIO::aio_unlink $save;
1421	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1422	}
1423
1424	sub rename {
1425	my ($self, $new_path) = @_;
1426
1427	$self->unlink_save;
1428
1429	delete $cf::MAP{$self->path};
1430	$self->{path} = new cf::path $new_path;
1431	$self->path ($self->{path}->as_string);
1432	$cf::MAP{$self->path} = $self;
1433
1434	$self->save;
1435	}
1436
1437	sub reset {	1732	sub reset {
1438	my ($self) = @_;	1733	my ($self) = @_;
1439		1734
1440	my $lock = cf::lock_acquire "map_data:" . $self->path;	1735	my $lock = cf::lock_acquire "map_data:$self->{path}";
1441		1736
1442	return if $self->players;	1737	return if $self->players;
1443	return if $self->{path}{user_rel};#d#
1444		1738
1445	warn "resetting map ", $self->path;#d#	1739	warn "resetting map ", $self->path;
		1740
		1741	$self->in_memory (cf::MAP_SWAPPED);
		1742
		1743	# need to save uniques path
		1744	unless ($self->{deny_save}) {
		1745	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1746
		1747	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		1748	if $uniq;
		1749	}
1446		1750
1447	delete $cf::MAP{$self->path};	1751	delete $cf::MAP{$self->path};
		1752
		1753	$self->clear;
1448		1754
1449	$_->clear_links_to ($self) for values %cf::MAP;	1755	$_->clear_links_to ($self) for values %cf::MAP;
1450		1756
1451	$self->unlink_save;	1757	$self->unlink_save;
1452	$self->destroy;	1758	$self->destroy;
…		…
1455	my $nuke_counter = "aaaa";	1761	my $nuke_counter = "aaaa";
1456		1762
1457	sub nuke {	1763	sub nuke {
1458	my ($self) = @_;	1764	my ($self) = @_;
1459		1765
		1766	delete $cf::MAP{$self->path};
		1767
		1768	$self->unlink_save;
		1769
		1770	bless $self, "cf::map";
		1771	delete $self->{deny_reset};
1460	$self->{deny_save} = 1;	1772	$self->{deny_save} = 1;
1461	$self->reset_timeout (1);	1773	$self->reset_timeout (1);
1462	$self->rename ("{nuke}/" . ($nuke_counter++));	1774	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1775
		1776	$cf::MAP{$self->path} = $self;
		1777
1463	$self->reset; # polite request, might not happen	1778	$self->reset; # polite request, might not happen
1464	}	1779	}
1465		1780
1466	sub customise_for {	1781	=item cf::map::unique_maps
1467	my ($map, $ob) = @_;
1468		1782
1469	if ($map->per_player) {	1783	Returns an arrayref of paths of all shared maps that have
1470	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	1784	instantiated unique items. May block.
1471	}
1472		1785
1473	$map	1786	=cut
1474	}
1475		1787
1476	sub emergency_save {	1788	sub unique_maps() {
1477	my $freeze_guard = cf::freeze_mainloop;	1789	my $files = aio_readdir $UNIQUEDIR
		1790	or return;
1478		1791
1479	warn "enter emergency perl save\n";	1792	my @paths;
1480		1793
1481	cf::sync_job {	1794	for (@$files) {
1482	warn "begin emergency player save\n";	1795	utf8::decode $_;
1483	$_->save for values %cf::PLAYER;	1796	next if /\.pst$/;
1484	warn "end emergency player save\n";	1797	next unless /^$PATH_SEP/o;
1485		1798
1486	warn "begin emergency map save\n";	1799	push @paths, cf::map::normalise $_;
1487	$_->save for values %cf::MAP;
1488	warn "end emergency map save\n";
1489	};	1800	}
1490		1801
1491	warn "leave emergency perl save\n";	1802	\@paths
1492	}	1803	}
1493		1804
1494	package cf;	1805	package cf;
1495		1806
1496	=back	1807	=back
1497		1808
		1809	=head3 cf::object
		1810
		1811	=cut
		1812
		1813	package cf::object;
		1814
		1815	=over 4
		1816
		1817	=item $ob->inv_recursive
		1818
		1819	Returns the inventory of the object _and_ their inventories, recursively.
		1820
		1821	=cut
		1822
		1823	sub inv_recursive_;
		1824	sub inv_recursive_ {
		1825	map { $_, inv_recursive_ $_->inv } @_
		1826	}
		1827
		1828	sub inv_recursive {
		1829	inv_recursive_ inv $_[0]
		1830	}
		1831
		1832	package cf;
		1833
		1834	=back
1498		1835
1499	=head3 cf::object::player	1836	=head3 cf::object::player
1500		1837
1501	=over 4	1838	=over 4
1502		1839
…		…
1542		1879
1543	=item $player_object->enter_link	1880	=item $player_object->enter_link
1544		1881
1545	Freezes the player and moves him/her to a special map (C<{link}>).	1882	Freezes the player and moves him/her to a special map (C<{link}>).
1546		1883
1547	The player should be reaosnably safe there for short amounts of time. You	1884	The player should be reasonably safe there for short amounts of time. You
1548	I<MUST> call C<leave_link> as soon as possible, though.	1885	I<MUST> call C<leave_link> as soon as possible, though.
1549		1886
		1887	Will never block.
		1888
1550	=item $player_object->leave_link ($map, $x, $y)	1889	=item $player_object->leave_link ($map, $x, $y)
1551		1890
1552	Moves the player out of the specila link map onto the given map. If the	1891	Moves the player out of the special C<{link}> map onto the specified
1553	map is not valid (or omitted), the player will be moved back to the	1892	map. If the map is not valid (or omitted), the player will be moved back
1554	location he/she was before the call to C<enter_link>, or, if that fails,	1893	to the location he/she was before the call to C<enter_link>, or, if that
1555	to the emergency map position.	1894	fails, to the emergency map position.
1556		1895
1557	Might block.	1896	Might block.
1558		1897
1559	=cut	1898	=cut
		1899
		1900	sub link_map {
		1901	unless ($LINK_MAP) {
		1902	$LINK_MAP = cf::map::find "{link}"
		1903	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		1904	$LINK_MAP->load;
		1905	}
		1906
		1907	$LINK_MAP
		1908	}
1560		1909
1561	sub cf::object::player::enter_link {	1910	sub cf::object::player::enter_link {
1562	my ($self) = @_;	1911	my ($self) = @_;
1563		1912
1564	$self->deactivate_recursive;	1913	$self->deactivate_recursive;
1565		1914
1566	return if $self->map == $LINK_MAP;	1915	return if UNIVERSAL::isa $self->map, "ext::map_link";
1567		1916
1568	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	1917	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1569	if $self->map;	1918	if $self->map && $self->map->{path} ne "{link}";
1570		1919
1571	$self->enter_map ($LINK_MAP, 20, 20);	1920	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1572	}	1921	}
1573		1922
1574	sub cf::object::player::leave_link {	1923	sub cf::object::player::leave_link {
1575	my ($self, $map, $x, $y) = @_;	1924	my ($self, $map, $x, $y) = @_;
		1925
		1926	return unless $self->contr->active;
1576		1927
1577	my $link_pos = delete $self->{_link_pos};	1928	my $link_pos = delete $self->{_link_pos};
1578		1929
1579	unless ($map) {	1930	unless ($map) {
1580	# restore original map position	1931	# restore original map position
…		…
1594	# use -1 or undef as default coordinates, not 0, 0	1945	# use -1 or undef as default coordinates, not 0, 0
1595	($x, $y) = ($map->enter_x, $map->enter_y)	1946	($x, $y) = ($map->enter_x, $map->enter_y)
1596	if $x <=0 && $y <= 0;	1947	if $x <=0 && $y <= 0;
1597		1948
1598	$map->load;	1949	$map->load;
		1950	$map->load_diag;
1599		1951
1600	return unless $self->contr->active;	1952	return unless $self->contr->active;
1601	$self->activate_recursive;	1953	$self->activate_recursive;
		1954
		1955	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1602	$self->enter_map ($map, $x, $y);	1956	$self->enter_map ($map, $x, $y);
1603	}	1957	}
1604		1958
1605	cf::player->attach (
1606	on_logout => sub {
1607	my ($pl) = @_;
1608
1609	# abort map switching before logout
1610	if ($pl->ob->{_link_pos}) {
1611	cf::sync_job {
1612	$pl->ob->leave_link
1613	};
1614	}
1615	},
1616	on_login => sub {
1617	my ($pl) = @_;
1618
1619	# try to abort aborted map switching on player login :)
1620	# should happen only on crashes
1621	if ($pl->ob->{_link_pos}) {
1622	$pl->ob->enter_link;
1623	(async {
1624	# we need this sleep as the login has a concurrent enter_exit running
1625	# and this sleep increases chances of the player not ending up in scorn
1626	$pl->ob->reply (undef,
1627	"There was an internal problem at your last logout, "
1628	. "the server will try to bring you to your intended destination in a second.",
1629	cf::NDI_RED);
1630	Coro::Timer::sleep 1;
1631	$pl->ob->leave_link;
1632	})->prio (2);
1633	}
1634	},
1635	);
1636
1637	=item $player_object->goto ($path, $x, $y)	1959	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1638		1960
		1961	Moves the player to the given map-path and coordinates by first freezing
		1962	her, loading and preparing them map, calling the provided $check callback
		1963	that has to return the map if sucecssful, and then unfreezes the player on
		1964	the new (success) or old (failed) map position.
		1965
1639	=cut	1966	=cut
		1967
		1968	our $GOTOGEN;
1640		1969
1641	sub cf::object::player::goto {	1970	sub cf::object::player::goto {
1642	my ($self, $path, $x, $y) = @_;	1971	my ($self, $path, $x, $y, $check) = @_;
		1972
		1973	# do generation counting so two concurrent goto's will be executed in-order
		1974	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1643		1975
1644	$self->enter_link;	1976	$self->enter_link;
1645		1977
1646	(async {	1978	(async {
1647	$path = new cf::path $path;	1979	my $map = eval {
1648
1649	my $map = cf::map::find $path->as_string;	1980	my $map = cf::map::find $path;
		1981
		1982	if ($map) {
1650	$map = $map->customise_for ($self) if $map;	1983	$map = $map->customise_for ($self);
1651		1984	$map = $check->($map) if $check && $map;
1652	# warn "entering ", $map->path, " at ($x, $y)\n"	1985	} else {
1653	# if $map;
1654
1655	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	1986	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		1987	}
1656		1988
		1989	$map
		1990	};
		1991
		1992	if ($@) {
		1993	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		1994	LOG llevError | logBacktrace, Carp::longmess $@;
		1995	}
		1996
		1997	if ($gen == $self->{_goto_generation}) {
		1998	delete $self->{_goto_generation};
1657	$self->leave_link ($map, $x, $y);	1999	$self->leave_link ($map, $x, $y);
		2000	}
1658	})->prio (1);	2001	})->prio (1);
1659	}	2002	}
1660		2003
1661	=item $player_object->enter_exit ($exit_object)	2004	=item $player_object->enter_exit ($exit_object)
1662		2005
…		…
1664		2007
1665	sub parse_random_map_params {	2008	sub parse_random_map_params {
1666	my ($spec) = @_;	2009	my ($spec) = @_;
1667		2010
1668	my $rmp = { # defaults	2011	my $rmp = { # defaults
1669	xsize => 10,	2012	xsize => (cf::rndm 15, 40),
1670	ysize => 10,	2013	ysize => (cf::rndm 15, 40),
		2014	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2015	#layout => string,
1671	};	2016	};
1672		2017
1673	for (split /\n/, $spec) {	2018	for (split /\n/, $spec) {
1674	my ($k, $v) = split /\s+/, $_, 2;	2019	my ($k, $v) = split /\s+/, $_, 2;
1675		2020
…		…
1679	$rmp	2024	$rmp
1680	}	2025	}
1681		2026
1682	sub prepare_random_map {	2027	sub prepare_random_map {
1683	my ($exit) = @_;	2028	my ($exit) = @_;
		2029
		2030	my $guard = cf::lock_acquire "exit_prepare:$exit";
1684		2031
1685	# all this does is basically replace the /! path by	2032	# all this does is basically replace the /! path by
1686	# a new random map path (?random/...) with a seed	2033	# a new random map path (?random/...) with a seed
1687	# that depends on the exit object	2034	# that depends on the exit object
1688		2035
1689	my $rmp = parse_random_map_params $exit->msg;	2036	my $rmp = parse_random_map_params $exit->msg;
1690		2037
1691	if ($exit->map) {	2038	if ($exit->map) {
1692	$rmp->{region} = $exit->map->region_name;	2039	$rmp->{region} = $exit->region->name;
1693	$rmp->{origin_map} = $exit->map->path;	2040	$rmp->{origin_map} = $exit->map->path;
1694	$rmp->{origin_x} = $exit->x;	2041	$rmp->{origin_x} = $exit->x;
1695	$rmp->{origin_y} = $exit->y;	2042	$rmp->{origin_y} = $exit->y;
1696	}	2043	}
1697		2044
1698	$rmp->{random_seed} ||= $exit->random_seed;	2045	$rmp->{random_seed} ||= $exit->random_seed;
1699		2046
1700	my $data = cf::to_json $rmp;	2047	my $data = cf::to_json $rmp;
1701	my $md5 = Digest::MD5::md5_hex $data;	2048	my $md5 = Digest::MD5::md5_hex $data;
		2049	my $meta = "$RANDOMDIR/$md5.meta";
1702		2050
1703	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2051	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1704	aio_write $fh, 0, (length $data), $data, 0;	2052	aio_write $fh, 0, (length $data), $data, 0;
		2053	undef $fh;
		2054	aio_rename "$meta~", $meta;
1705		2055
1706	$exit->slaying ("?random/$md5");	2056	$exit->slaying ("?random/$md5");
1707	$exit->msg (undef);	2057	$exit->msg (undef);
1708	}	2058	}
1709	}	2059	}
1710		2060
1711	sub cf::object::player::enter_exit {	2061	sub cf::object::player::enter_exit {
1712	my ($self, $exit) = @_;	2062	my ($self, $exit) = @_;
1713		2063
1714	return unless $self->type == cf::PLAYER;	2064	return unless $self->type == cf::PLAYER;
		2065
		2066	if ($exit->slaying eq "/!") {
		2067	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2068	# the problem is that $exit might not survive long enough
		2069	# so it needs to be done right now, right here
		2070	cf::sync_job { prepare_random_map $exit };
		2071	}
		2072
		2073	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2074	my $hp = $exit->stats->hp;
		2075	my $sp = $exit->stats->sp;
1715		2076
1716	$self->enter_link;	2077	$self->enter_link;
1717		2078
1718	(async {	2079	(async {
1719	$self->deactivate_recursive; # just to be sure	2080	$self->deactivate_recursive; # just to be sure
1720	unless (eval {	2081	unless (eval {
1721	prepare_random_map $exit	2082	$self->goto ($slaying, $hp, $sp);
1722	if $exit->slaying eq "/!";
1723
1724	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1725	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1726		2083
1727	1;	2084	1;
1728	}) {	2085	}) {
1729	$self->message ("Something went wrong deep within the crossfire server. "	2086	$self->message ("Something went wrong deep within the crossfire server. "
1730	. "I'll try to bring you back to the map you were before. "	2087	. "I'll try to bring you back to the map you were before. "
1731	. "Please report this to the dungeon master",	2088	. "Please report this to the dungeon master!",
1732	cf::NDI_UNIQUE | cf::NDI_RED);	2089	cf::NDI_UNIQUE | cf::NDI_RED);
1733		2090
1734	warn "ERROR in enter_exit: $@";	2091	warn "ERROR in enter_exit: $@";
1735	$self->leave_link;	2092	$self->leave_link;
1736	}	2093	}
1737	})->prio (1);	2094	})->prio (1);
…		…
1750		2107
1751	sub cf::client::send_drawinfo {	2108	sub cf::client::send_drawinfo {
1752	my ($self, $text, $flags) = @_;	2109	my ($self, $text, $flags) = @_;
1753		2110
1754	utf8::encode $text;	2111	utf8::encode $text;
1755	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2112	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1756	}	2113	}
1757		2114
		2115	=item $client->ext_event ($type, %msg)
		2116
		2117	Sends an exti event to the client.
		2118
		2119	=cut
		2120
		2121	sub cf::client::ext_event($$%) {
		2122	my ($self, $type, %msg) = @_;
		2123
		2124	$msg{msgtype} = "event_$type";
		2125	$self->send_packet ("ext " . cf::to_json \%msg);
		2126	}
1758		2127
1759	=item $success = $client->query ($flags, "text", \&cb)	2128	=item $success = $client->query ($flags, "text", \&cb)
1760		2129
1761	Queues a query to the client, calling the given callback with	2130	Queues a query to the client, calling the given callback with
1762	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2131	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
…		…
1791	# get handled first	2160	# get handled first
1792	my $queue = delete $ns->{query_queue}	2161	my $queue = delete $ns->{query_queue}
1793	or return; # be conservative, not sure how that can happen, but we saw a crash here	2162	or return; # be conservative, not sure how that can happen, but we saw a crash here
1794		2163
1795	(shift @$queue)->[1]->($msg);	2164	(shift @$queue)->[1]->($msg);
		2165	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1796		2166
1797	push @{ $ns->{query_queue} }, @$queue;	2167	push @{ $ns->{query_queue} }, @$queue;
1798		2168
1799	if (@{ $ns->{query_queue} } == @$queue) {	2169	if (@{ $ns->{query_queue} } == @$queue) {
1800	if (@$queue) {	2170	if (@$queue) {
…		…
1858		2228
1859	# here we export the classes and methods available to script code	2229	# here we export the classes and methods available to script code
1860		2230
1861	=pod	2231	=pod
1862		2232
1863	The following fucntions and emthods are available within a safe environment:	2233	The following functions and methods are available within a safe environment:
1864		2234
1865	cf::object contr pay_amount pay_player map	2235	cf::object contr pay_amount pay_player map
1866	cf::object::player player	2236	cf::object::player player
1867	cf::player peaceful	2237	cf::player peaceful
1868	cf::map trigger	2238	cf::map trigger
…		…
1953	#############################################################################	2323	#############################################################################
1954		2324
1955	=head2 EXTENSION DATABASE SUPPORT	2325	=head2 EXTENSION DATABASE SUPPORT
1956		2326
1957	Crossfire maintains a very simple database for extension use. It can	2327	Crossfire maintains a very simple database for extension use. It can
1958	currently store anything that can be serialised using Storable, which	2328	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
1959	excludes objects.	2329	convert to/from binary).
1960		2330
1961	The parameter C<$family> should best start with the name of the extension	2331	The parameter C<$family> should best start with the name of the extension
1962	using it, it should be unique.	2332	using it, it should be unique.
1963		2333
1964	=over 4	2334	=over 4
1965		2335
1966	=item $hashref = cf::db_get $family
1967
1968	Return a hashref for use by the extension C<$family>, which can be
1969	modified. After modifications, you have to call C<cf::db_dirty> or
1970	C<cf::db_sync>.
1971
1972	=item $value = cf::db_get $family => $key	2336	=item $value = cf::db_get $family => $key
1973		2337
1974	Returns a single value from the database	2338	Returns a single value from the database.
1975
1976	=item cf::db_put $family => $hashref
1977
1978	Stores the given family hashref into the database. Updates are delayed, if
1979	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1980		2339
1981	=item cf::db_put $family => $key => $value	2340	=item cf::db_put $family => $key => $value
1982		2341
1983	Stores the given C<$value> in the family hash. Updates are delayed, if you	2342	Stores the given C<$value> in the family.
1984	want the data to be synced to disk immediately, use C<cf::db_sync>.
1985
1986	=item cf::db_dirty
1987
1988	Marks the database as dirty, to be updated at a later time.
1989
1990	=item cf::db_sync
1991
1992	Immediately write the database to disk I<if it is dirty>.
1993		2343
1994	=cut	2344	=cut
1995		2345
1996	our $DB;	2346	our $DB;
1997		2347
1998	{	2348	sub db_init {
1999	my $path = cf::localdir . "/database.pst";	2349	unless ($DB) {
		2350	$DB = BDB::db_create $DB_ENV;
2000		2351
2001	sub db_load() {	2352	cf::sync_job {
2002	$DB = stat $path ? Storable::retrieve $path : { };	2353	eval {
2003	}	2354	$DB->set_flags (BDB::CHKSUM);
2004		2355
2005	my $pid;	2356	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2006		2357	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2007	sub db_save() {	2358	cf::cleanup "db_open(db): $!" if $!;
2008	waitpid $pid, 0 if $pid;	2359	};
2009	if (0 == ($pid = fork)) {	2360	cf::cleanup "db_open(db): $@" if $@;
2010	$DB->{_meta}{version} = 1;
2011	Storable::nstore $DB, "$path~";
2012	rename "$path~", $path;
2013	cf::_exit 0 if defined $pid;
2014	}	2361	};
2015	}
2016
2017	my $dirty;
2018
2019	sub db_sync() {
2020	db_save if $dirty;
2021	undef $dirty;
2022	}
2023
2024	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2025	db_sync;
2026	});	2362	}
		2363	}
2027		2364
2028	sub db_dirty() {
2029	$dirty = 1;
2030	$idle->start;
2031	}
2032
2033	sub db_get($;$) {	2365	sub db_get($$) {
2034	@_ >= 2	2366	my $key = "$_[0]/$_[1]";
2035	? $DB->{$_[0]}{$_[1]}
2036	: ($DB->{$_[0]} ||= { })
2037	}
2038		2367
		2368	cf::sync_job {
		2369	BDB::db_get $DB, undef, $key, my $data;
		2370
		2371	$! ? ()
		2372	: $data
		2373	}
		2374	}
		2375
2039	sub db_put($$;$) {	2376	sub db_put($$$) {
2040	if (@_ >= 3) {	2377	BDB::dbreq_pri 4;
2041	$DB->{$_[0]}{$_[1]} = $_[2];	2378	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
2042	} else {	2379	}
2043	$DB->{$_[0]} = $_[1];
2044	}
2045	db_dirty;
2046	}
2047		2380
2048	cf::global->attach (	2381	=item cf::cache $id => [$paths...], $processversion => $process
2049	prio => 10000,	2382
2050	on_cleanup => sub {	2383	Generic caching function that returns the value of the resource $id,
2051	db_sync;	2384	caching and regenerating as required.
		2385
		2386	This function can block.
		2387
		2388	=cut
		2389
		2390	sub cache {
		2391	my ($id, $src, $processversion, $process) = @_;
		2392
		2393	my $meta =
		2394	join "\x00",
		2395	$processversion,
		2396	map {
		2397	aio_stat $_
		2398	and Carp::croak "$_: $!";
		2399
		2400	($_, (stat _)[7,9])
		2401	} @$src;
		2402
		2403	my $dbmeta = db_get cache => "$id/meta";
		2404	if ($dbmeta ne $meta) {
		2405	# changed, we may need to process
		2406
		2407	my @data;
		2408	my $md5;
		2409
		2410	for (0 .. $#$src) {
		2411	0 <= aio_load $src->[$_], $data[$_]
		2412	or Carp::croak "$src->[$_]: $!";
2052	},	2413	}
2053	);	2414
		2415	# if processing is expensive, check
		2416	# checksum first
		2417	if (1) {
		2418	$md5 =
		2419	join "\x00",
		2420	$processversion,
		2421	map {
		2422	Coro::cede;
		2423	($src->[$_], Digest::MD5::md5_hex $data[$_])
		2424	} 0.. $#$src;
		2425
		2426
		2427	my $dbmd5 = db_get cache => "$id/md5";
		2428	if ($dbmd5 eq $md5) {
		2429	db_put cache => "$id/meta", $meta;
		2430
		2431	return db_get cache => "$id/data";
		2432	}
		2433	}
		2434
		2435	my $t1 = Time::HiRes::time;
		2436	my $data = $process->(\@data);
		2437	my $t2 = Time::HiRes::time;
		2438
		2439	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		2440
		2441	db_put cache => "$id/data", $data;
		2442	db_put cache => "$id/md5" , $md5;
		2443	db_put cache => "$id/meta", $meta;
		2444
		2445	return $data;
		2446	}
		2447
		2448	db_get cache => "$id/data"
		2449	}
		2450
		2451	=item fork_call { }, $args
		2452
		2453	Executes the given code block with the given arguments in a seperate
		2454	process, returning the results. Everything must be serialisable with
		2455	Coro::Storable. May, of course, block. Note that the executed sub may
		2456	never block itself or use any form of Event handling.
		2457
		2458	=cut
		2459
		2460	sub fork_call(&@) {
		2461	my ($cb, @args) = @_;
		2462
		2463	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		2464	# or die "socketpair: $!";
		2465	pipe my $fh1, my $fh2
		2466	or die "pipe: $!";
		2467
		2468	if (my $pid = fork) {
		2469	close $fh2;
		2470
		2471	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
		2472	$res = Coro::Storable::thaw $res;
		2473
		2474	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		2475
		2476	die $$res unless "ARRAY" eq ref $res;
		2477
		2478	return wantarray ? @$res : $res->[-1];
		2479	} else {
		2480	reset_signals;
		2481	local $SIG{__WARN__};
		2482	local $SIG{__DIE__};
		2483	eval {
		2484	close $fh1;
		2485
		2486	my @res = eval { $cb->(@args) };
		2487	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
		2488	};
		2489
		2490	warn $@ if $@;
		2491	_exit 0;
		2492	}
2054	}	2493	}
2055		2494
2056	#############################################################################	2495	#############################################################################
2057	# the server's main()	2496	# the server's init and main functions
		2497
		2498	sub load_facedata($) {
		2499	my ($path) = @_;
		2500
		2501	warn "loading facedata from $path\n";
		2502
		2503	my $facedata;
		2504	0 < aio_load $path, $facedata
		2505	or die "$path: $!";
		2506
		2507	$facedata = Coro::Storable::thaw $facedata;
		2508
		2509	$facedata->{version} == 2
		2510	or cf::cleanup "$path: version mismatch, cannot proceed.";
		2511
		2512	{
		2513	my $faces = $facedata->{faceinfo};
		2514
		2515	while (my ($face, $info) = each %$faces) {
		2516	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		2517	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
		2518	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2519	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
		2520	Coro::cede;
		2521	}
		2522
		2523	while (my ($face, $info) = each %$faces) {
		2524	next unless $info->{smooth};
		2525	my $idx = cf::face::find $face
		2526	or next;
		2527	if (my $smooth = cf::face::find $info->{smooth}) {
		2528	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2529	} else {
		2530	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2531	}
		2532	Coro::cede;
		2533	}
		2534	}
		2535
		2536	{
		2537	my $anims = $facedata->{animinfo};
		2538
		2539	while (my ($anim, $info) = each %$anims) {
		2540	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2541	Coro::cede;
		2542	}
		2543
		2544	cf::anim::invalidate_all; # d'oh
		2545	}
		2546
		2547	1
		2548	}
		2549
		2550	sub reload_regions {
		2551	load_resource_file "$MAPDIR/regions"
		2552	or die "unable to load regions file\n";
		2553	}
		2554
		2555	sub reload_facedata {
		2556	load_facedata "$DATADIR/facedata"
		2557	or die "unable to load facedata\n";
		2558	}
		2559
		2560	sub reload_archetypes {
		2561	load_resource_file "$DATADIR/archetypes"
		2562	or die "unable to load archetypes\n";
		2563	}
		2564
		2565	sub reload_treasures {
		2566	load_resource_file "$DATADIR/treasures"
		2567	or die "unable to load treasurelists\n";
		2568	}
		2569
		2570	sub reload_resources {
		2571	warn "reloading resource files...\n";
		2572
		2573	reload_regions;
		2574	reload_facedata;
		2575	#reload_archetypes;#d#
		2576	reload_archetypes;
		2577	reload_treasures;
		2578
		2579	warn "finished reloading resource files\n";
		2580	}
		2581
		2582	sub init {
		2583	reload_resources;
		2584	}
2058		2585
2059	sub cfg_load {	2586	sub cfg_load {
2060	open my $fh, "<:utf8", cf::confdir . "/config"	2587	open my $fh, "<:utf8", "$CONFDIR/config"
2061	or return;	2588	or return;
2062		2589
2063	local $/;	2590	local $/;
2064	*CFG = YAML::Syck::Load <$fh>;	2591	*CFG = YAML::Syck::Load <$fh>;
2065		2592
…		…
2068	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	2595	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2069	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	2596	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
2070		2597
2071	if (exists $CFG{mlockall}) {	2598	if (exists $CFG{mlockall}) {
2072	eval {	2599	eval {
2073	$CFG{mlockall} ? &mlockall : &munlockall	2600	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2074	and die "WARNING: m(un)lockall failed: $!\n";	2601	and die "WARNING: m(un)lockall failed: $!\n";
2075	};	2602	};
2076	warn $@ if $@;	2603	warn $@ if $@;
2077	}	2604	}
2078	}	2605	}
2079		2606
2080	sub main {	2607	sub main {
2081	# we must not ever block the main coroutine	2608	# we must not ever block the main coroutine
2082	local $Coro::idle = sub {	2609	local $Coro::idle = sub {
2083	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	2610	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		2611	(async {
2084	async { Event::one_event };	2612	Event::one_event;
		2613	})->prio (Coro::PRIO_MAX);
2085	};	2614	};
2086		2615
2087	cfg_load;	2616	cfg_load;
2088	db_load;	2617	db_init;
2089	load_extensions;	2618	load_extensions;
		2619
		2620	$TICK_WATCHER->start;
2090	Event::loop;	2621	Event::loop;
2091	}	2622	}
2092		2623
2093	#############################################################################	2624	#############################################################################
2094	# initialisation	2625	# initialisation and cleanup
2095		2626
		2627	# install some emergency cleanup handlers
		2628	BEGIN {
		2629	for my $signal (qw(INT HUP TERM)) {
		2630	Event->signal (
		2631	reentrant => 0,
		2632	data => WF_AUTOCANCEL,
		2633	signal => $signal,
		2634	prio => 0,
		2635	cb => sub {
		2636	cf::cleanup "SIG$signal";
		2637	},
		2638	);
		2639	}
		2640	}
		2641
		2642	sub emergency_save() {
		2643	my $freeze_guard = cf::freeze_mainloop;
		2644
		2645	warn "enter emergency perl save\n";
		2646
		2647	cf::sync_job {
		2648	# use a peculiar iteration method to avoid tripping on perl
		2649	# refcount bugs in for. also avoids problems with players
		2650	# and maps saved/destroyed asynchronously.
		2651	warn "begin emergency player save\n";
		2652	for my $login (keys %cf::PLAYER) {
		2653	my $pl = $cf::PLAYER{$login} or next;
		2654	$pl->valid or next;
		2655	$pl->save;
		2656	}
		2657	warn "end emergency player save\n";
		2658
		2659	warn "begin emergency map save\n";
		2660	for my $path (keys %cf::MAP) {
		2661	my $map = $cf::MAP{$path} or next;
		2662	$map->valid or next;
		2663	$map->save;
		2664	}
		2665	warn "end emergency map save\n";
		2666
		2667	warn "begin emergency database checkpoint\n";
		2668	BDB::db_env_txn_checkpoint $DB_ENV;
		2669	warn "end emergency database checkpoint\n";
		2670	};
		2671
		2672	warn "leave emergency perl save\n";
		2673	}
		2674
		2675	sub post_cleanup {
		2676	my ($make_core) = @_;
		2677
		2678	warn Carp::longmess "post_cleanup backtrace"
		2679	if $make_core;
		2680	}
		2681
2096	sub reload() {	2682	sub do_reload_perl() {
2097	# can/must only be called in main	2683	# can/must only be called in main
2098	if ($Coro::current != $Coro::main) {	2684	if ($Coro::current != $Coro::main) {
2099	warn "can only reload from main coroutine\n";	2685	warn "can only reload from main coroutine";
2100	return;	2686	return;
2101	}	2687	}
2102		2688
2103	warn "reloading...";	2689	warn "reloading...";
2104		2690
2105	my $guard = freeze_mainloop;	2691	warn "entering sync_job";
		2692
		2693	cf::sync_job {
		2694	cf::write_runtime; # external watchdog should not bark
2106	cf::emergency_save;	2695	cf::emergency_save;
		2696	cf::write_runtime; # external watchdog should not bark
2107		2697
2108	eval {	2698	warn "syncing database to disk";
		2699	BDB::db_env_txn_checkpoint $DB_ENV;
		2700
2109	# if anything goes wrong in here, we should simply crash as we already saved	2701	# if anything goes wrong in here, we should simply crash as we already saved
2110		2702
2111	# cancel all watchers	2703	warn "cancelling all WF_AUTOCANCEL watchers";
2112	for (Event::all_watchers) {	2704	for (Event::all_watchers) {
2113	$_->cancel if $_->data & WF_AUTOCANCEL;	2705	$_->cancel if $_->data & WF_AUTOCANCEL;
2114	}	2706	}
2115		2707
		2708	warn "flushing outstanding aio requests";
		2709	for (;;) {
		2710	BDB::flush;
		2711	IO::AIO::flush;
		2712	Coro::cede;
		2713	last unless IO::AIO::nreqs || BDB::nreqs;
		2714	warn "iterate...";
		2715	}
		2716
		2717	++$RELOAD;
		2718
2116	# cancel all extension coros	2719	warn "cancelling all extension coros";
2117	$_->cancel for values %EXT_CORO;	2720	$_->cancel for values %EXT_CORO;
2118	%EXT_CORO = ();	2721	%EXT_CORO = ();
2119		2722
2120	# unload all extensions	2723	warn "removing commands";
2121	for (@exts) {	2724	%COMMAND = ();
		2725
		2726	warn "removing ext commands";
		2727	%EXTCMD = ();
		2728
		2729	warn "unloading/nuking all extensions";
		2730	for my $pkg (@EXTS) {
2122	warn "unloading <$_>";	2731	warn "... unloading $pkg";
2123	unload_extension $_;	2732
		2733	if (my $cb = $pkg->can ("unload")) {
		2734	eval {
		2735	$cb->($pkg);
		2736	1
		2737	} or warn "$pkg unloaded, but with errors: $@";
2124	}	2738	}
2125		2739
		2740	warn "... nuking $pkg";
		2741	Symbol::delete_package $pkg;
		2742	}
		2743
2126	# unload all modules loaded from $LIBDIR	2744	warn "unloading all perl modules loaded from $LIBDIR";
2127	while (my ($k, $v) = each %INC) {	2745	while (my ($k, $v) = each %INC) {
2128	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2746	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2129		2747
2130	warn "removing <$k>";	2748	warn "... unloading $k";
2131	delete $INC{$k};	2749	delete $INC{$k};
2132		2750
2133	$k =~ s/\.pm$//;	2751	$k =~ s/\.pm$//;
2134	$k =~ s/\//::/g;	2752	$k =~ s/\//::/g;
2135		2753
…		…
2138	}	2756	}
2139		2757
2140	Symbol::delete_package $k;	2758	Symbol::delete_package $k;
2141	}	2759	}
2142		2760
2143	# sync database to disk
2144	cf::db_sync;
2145	IO::AIO::flush;
2146
2147	# get rid of safe::, as good as possible	2761	warn "getting rid of safe::, as good as possible";
2148	Symbol::delete_package "safe::$_"	2762	Symbol::delete_package "safe::$_"
2149	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2763	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2150		2764
2151	# remove register_script_function callbacks
2152	# TODO
2153
2154	# unload cf.pm "a bit"	2765	warn "unloading cf.pm \"a bit\"";
2155	delete $INC{"cf.pm"};	2766	delete $INC{"cf.pm"};
		2767	delete $INC{"cf/pod.pm"};
2156		2768
2157	# don't, removes xs symbols, too,	2769	# don't, removes xs symbols, too,
2158	# and global variables created in xs	2770	# and global variables created in xs
2159	#Symbol::delete_package __PACKAGE__;	2771	#Symbol::delete_package __PACKAGE__;
2160		2772
2161	# reload cf.pm	2773	warn "unload completed, starting to reload now";
		2774
2162	warn "reloading cf.pm";	2775	warn "reloading cf.pm";
2163	require cf;	2776	require cf;
2164	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2777	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2165		2778
2166	# load config and database again	2779	warn "loading config and database again";
2167	cf::cfg_load;	2780	cf::cfg_load;
2168	cf::db_load;
2169		2781
2170	# load extensions
2171	warn "load extensions";	2782	warn "loading extensions";
2172	cf::load_extensions;	2783	cf::load_extensions;
2173		2784
2174	# reattach attachments to objects	2785	warn "reattaching attachments to objects/players";
2175	warn "reattach";	2786	_global_reattach; # objects, sockets
2176	_global_reattach;	2787	warn "reattaching attachments to maps";
2177	reattach $_ for values %MAP;	2788	reattach $_ for values %MAP;
2178	};	2789	warn "reattaching attachments to players";
		2790	reattach $_ for values %PLAYER;
2179		2791
2180	if ($@) {	2792	warn "leaving sync_job";
		2793
		2794	1
		2795	} or do {
2181	warn $@;	2796	warn $@;
2182	warn "error while reloading, exiting.";	2797	warn "error while reloading, exiting.";
2183	exit 1;	2798	exit 1;
2184	}	2799	};
2185		2800
2186	warn "reloaded successfully";	2801	warn "reloaded";
2187	};	2802	};
2188		2803
2189	#############################################################################	2804	our $RELOAD_WATCHER; # used only during reload
2190		2805
2191	unless ($LINK_MAP) {	2806	sub reload_perl() {
2192	$LINK_MAP = cf::map::new;	2807	# doing reload synchronously and two reloads happen back-to-back,
		2808	# coro crashes during coro_state_free->destroy here.
2193		2809
2194	$LINK_MAP->width (41);	2810	$RELOAD_WATCHER ||= Event->timer (
2195	$LINK_MAP->height (41);	2811	reentrant => 0,
2196	$LINK_MAP->alloc;
2197	$LINK_MAP->path ("{link}");
2198	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2199	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2200
2201	# dirty hack because... archetypes are not yet loaded
2202	Event->timer (
2203	after => 10,	2812	after => 0,
		2813	data => WF_AUTOCANCEL,
2204	cb => sub {	2814	cb => sub {
2205	$_[0]->w->cancel;	2815	do_reload_perl;
2206		2816	undef $RELOAD_WATCHER;
2207	# provide some exits "home"
2208	my $exit = cf::object::new "exit";
2209
2210	$exit->slaying ($EMERGENCY_POSITION->[0]);
2211	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2212	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2213
2214	$LINK_MAP->insert ($exit->clone, 19, 19);
2215	$LINK_MAP->insert ($exit->clone, 19, 20);
2216	$LINK_MAP->insert ($exit->clone, 19, 21);
2217	$LINK_MAP->insert ($exit->clone, 20, 19);
2218	$LINK_MAP->insert ($exit->clone, 20, 21);
2219	$LINK_MAP->insert ($exit->clone, 21, 19);
2220	$LINK_MAP->insert ($exit->clone, 21, 20);
2221	$LINK_MAP->insert ($exit->clone, 21, 21);
2222
2223	$exit->destroy;
2224	});	2817	},
2225		2818	);
2226	$LINK_MAP->{deny_save} = 1;
2227	$LINK_MAP->{deny_reset} = 1;
2228
2229	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2230	}	2819	}
2231
2232	register "<global>", __PACKAGE__;
2233		2820
2234	register_command "reload" => sub {	2821	register_command "reload" => sub {
2235	my ($who, $arg) = @_;	2822	my ($who, $arg) = @_;
2236		2823
2237	if ($who->flag (FLAG_WIZ)) {	2824	if ($who->flag (FLAG_WIZ)) {
2238	$who->message ("start of reload.");
2239	reload;
2240	$who->message ("end of reload.");	2825	$who->message ("reloading server.");
		2826	async { reload_perl };
2241	}	2827	}
2242	};	2828	};
2243		2829
2244	unshift @INC, $LIBDIR;	2830	unshift @INC, $LIBDIR;
2245		2831
		2832	my $bug_warning = 0;
		2833
		2834	our @WAIT_FOR_TICK;
		2835	our @WAIT_FOR_TICK_BEGIN;
		2836
		2837	sub wait_for_tick {
		2838	return unless $TICK_WATCHER->is_active;
		2839	return if $Coro::current == $Coro::main;
		2840
		2841	my $signal = new Coro::Signal;
		2842	push @WAIT_FOR_TICK, $signal;
		2843	$signal->wait;
		2844	}
		2845
		2846	sub wait_for_tick_begin {
		2847	return unless $TICK_WATCHER->is_active;
		2848	return if $Coro::current == $Coro::main;
		2849
		2850	my $signal = new Coro::Signal;
		2851	push @WAIT_FOR_TICK_BEGIN, $signal;
		2852	$signal->wait;
		2853	}
		2854
		2855	my $min = 1e6;#d#
		2856	my $avg = 10;
2246	$TICK_WATCHER = Event->timer (	2857	$TICK_WATCHER = Event->timer (
2247	reentrant => 0,	2858	reentrant => 0,
		2859	parked => 1,
2248	prio => 0,	2860	prio => 0,
2249	at => $NEXT_TICK || $TICK,	2861	at => $NEXT_TICK || $TICK,
2250	data => WF_AUTOCANCEL,	2862	data => WF_AUTOCANCEL,
2251	cb => sub {	2863	cb => sub {
		2864	if ($Coro::current != $Coro::main) {
		2865	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2866	unless ++$bug_warning > 10;
		2867	return;
		2868	}
		2869
		2870	$NOW = $tick_start = Event::time;
		2871
2252	cf::server_tick; # one server iteration	2872	cf::server_tick; # one server iteration
		2873
		2874	0 && sync_job {#d#
		2875	for(1..10) {
		2876	my $t = Event::time;
		2877	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		2878	or die;
		2879
		2880	$map->width (50);
		2881	$map->height (50);
		2882	$map->alloc;
		2883	$map->_load_objects ("/tmp/x.map", 1);
		2884	my $t = Event::time - $t;
		2885
		2886	#next unless $t < 0.0013;#d#
		2887	if ($t < $min) {
		2888	$min = $t;
		2889	}
		2890	$avg = $avg * 0.99 + $t * 0.01;
		2891	}
		2892	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		2893	exit 0;
		2894	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
		2895	};
		2896
2253	$RUNTIME += $TICK;	2897	$RUNTIME += $TICK;
2254	$NEXT_TICK += $TICK;	2898	$NEXT_TICK += $TICK;
2255		2899
		2900	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		2901	$NEXT_RUNTIME_WRITE = $NOW + 10;
		2902	Coro::async_pool {
		2903	write_runtime
		2904	or warn "ERROR: unable to write runtime file: $!";
		2905	};
		2906	}
		2907
		2908	# my $AFTER = Event::time;
		2909	# warn $AFTER - $NOW;#d#
		2910
		2911	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		2912	$sig->send;
		2913	}
		2914	while (my $sig = shift @WAIT_FOR_TICK) {
		2915	$sig->send;
		2916	}
		2917
		2918	$NOW = Event::time;
		2919
2256	# if we are delayed by four ticks or more, skip them all	2920	# if we are delayed by four ticks or more, skip them all
2257	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2921	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2258		2922
2259	$TICK_WATCHER->at ($NEXT_TICK);	2923	$TICK_WATCHER->at ($NEXT_TICK);
2260	$TICK_WATCHER->start;	2924	$TICK_WATCHER->start;
		2925
		2926	$LOAD = ($NOW - $tick_start) / $TICK;
		2927	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		2928
		2929	_post_tick;
		2930
		2931
2261	},	2932	},
2262	);	2933	);
2263		2934
		2935	{
2264	IO::AIO::max_poll_time $TICK * 0.2;	2936	BDB::max_poll_time $TICK * 0.1;
2265		2937	$BDB_POLL_WATCHER = Event->io (
2266	Event->io (	2938	reentrant => 0,
2267	fd => IO::AIO::poll_fileno,	2939	fd => BDB::poll_fileno,
2268	poll => 'r',	2940	poll => 'r',
2269	prio => 5,	2941	prio => 0,
2270	data => WF_AUTOCANCEL,
2271	cb => \&IO::AIO::poll_cb,
2272	);
2273
2274	Event->timer (
2275	data => WF_AUTOCANCEL,	2942	data => WF_AUTOCANCEL,
2276	after => 0,	2943	cb => \&BDB::poll_cb,
2277	interval => 10,	2944	);
2278	cb => sub {	2945	BDB::min_parallel 8;
2279	(Coro::unblock_sub {	2946
2280	write_runtime	2947	BDB::set_sync_prepare {
2281	or warn "ERROR: unable to write runtime file: $!";	2948	my $status;
		2949	my $current = $Coro::current;
		2950	(
		2951	sub {
		2952	$status = $!;
		2953	$current->ready; undef $current;
		2954	},
		2955	sub {
		2956	Coro::schedule while defined $current;
		2957	$! = $status;
		2958	},
		2959	)
		2960	};
		2961
		2962	unless ($DB_ENV) {
		2963	$DB_ENV = BDB::db_env_create;
		2964
		2965	cf::sync_job {
		2966	eval {
		2967	BDB::db_env_open
		2968	$DB_ENV,
		2969	$BDBDIR,
		2970	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		2971	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		2972	0666;
		2973
		2974	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		2975
		2976	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		2977	$DB_ENV->set_lk_detect;
		2978	};
		2979
		2980	cf::cleanup "db_env_open(db): $@" if $@;
2282	})->();	2981	};
2283	},	2982	}
2284	);	2983	}
		2984
		2985	{
		2986	IO::AIO::min_parallel 8;
		2987
		2988	undef $Coro::AIO::WATCHER;
		2989	IO::AIO::max_poll_time $TICK * 0.1;
		2990	$AIO_POLL_WATCHER = Event->io (
		2991	reentrant => 0,
		2992	data => WF_AUTOCANCEL,
		2993	fd => IO::AIO::poll_fileno,
		2994	poll => 'r',
		2995	prio => 6,
		2996	cb => \&IO::AIO::poll_cb,
		2997	);
		2998	}
		2999
		3000	my $_log_backtrace;
		3001
		3002	sub _log_backtrace {
		3003	my ($msg, @addr) = @_;
		3004
		3005	$msg =~ s/\n//;
		3006
		3007	# limit the # of concurrent backtraces
		3008	if ($_log_backtrace < 2) {
		3009	++$_log_backtrace;
		3010	async {
		3011	my @bt = fork_call {
		3012	@addr = map { sprintf "%x", $_ } @addr;
		3013	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3014	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3015	or die "addr2line: $!";
		3016
		3017	my @funcs;
		3018	my @res = <$fh>;
		3019	chomp for @res;
		3020	while (@res) {
		3021	my ($func, $line) = splice @res, 0, 2, ();
		3022	push @funcs, "[$func] $line";
		3023	}
		3024
		3025	@funcs
		3026	};
		3027
		3028	LOG llevInfo, "[ABT] $msg\n";
		3029	LOG llevInfo, "[ABT] $_\n" for @bt;
		3030	--$_log_backtrace;
		3031	};
		3032	} else {
		3033	LOG llevInfo, "[ABT] $msg\n";
		3034	LOG llevInfo, "[ABT] [suppressed]\n";
		3035	}
		3036	}
		3037
		3038	# load additional modules
		3039	use cf::pod;
2285		3040
2286	END { cf::emergency_save }	3041	END { cf::emergency_save }
2287		3042
2288	1	3043	1
2289		3044

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