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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.129 by root, Wed Jan 3 00:41:19 2007 UTC vs.
Revision 1.276 by root, Sun Jun 10 04:05:47 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 (2); # 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
		88	our %PLAYER; # all users
52	our %MAP; # all maps	89	our %MAP; # all maps
53	our $LINK_MAP; # the special {link} map	90	our $LINK_MAP; # the special {link} map, which is always available
54	our $FREEZE;	91
55	our $RANDOM_MAPS = cf::localdir . "/random";	92	# used to convert map paths into valid unix filenames by replacing / by ∕
56	our %EXT_CORO;	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	112	our $EMERGENCY_POSITION;
75	our $LINK_MAP;
76		113
77	our $EMERGENCY_POSITION = $cf::CFG{emergency_position} || ["/world/world_105_115", 5, 37];	114	sub cf::map::normalise;
78		115
79	#############################################################################	116	#############################################################################
80		117
81	=head2 GLOBAL VARIABLES	118	=head2 GLOBAL VARIABLES
82		119
…		…
89	=item $cf::RUNTIME	126	=item $cf::RUNTIME
90		127
91	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
92	every server tick.	129	every server tick.
93		130
94	=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
95		134
96	The perl library directory, where extensions and cf-specific modules can	135	Various directories - "/etc", read-only install directory, perl-library
97	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.
98		139
99	=item $cf::NOW	140	=item $cf::NOW
100		141
101	The time of the last (current) server tick.	142	The time of the last (current) server tick.
102		143
103	=item $cf::TICK	144	=item $cf::TICK
104		145
105	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.
106		157
107	=item %cf::CFG	158	=item %cf::CFG
108		159
109	Configuration for the server, loaded from C</etc/crossfire/config>, or	160	Configuration for the server, loaded from C</etc/crossfire/config>, or
110	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.
111		168
112	=back	169	=back
113		170
114	=cut	171	=cut
115		172
116	BEGIN {	173	BEGIN {
117	*CORE::GLOBAL::warn = sub {	174	*CORE::GLOBAL::warn = sub {
118	my $msg = join "", @_;	175	my $msg = join "", @_;
119	utf8::encode $msg;
120		176
121	$msg .= "\n"	177	$msg .= "\n"
122	unless $msg =~ /\n$/;	178	unless $msg =~ /\n$/;
123		179
		180	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		181
		182	utf8::encode $msg;
124	LOG llevError, "cfperl: $msg";	183	LOG llevError, $msg;
125	};	184	};
126	}	185	}
127		186
128	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	187	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
129	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	188	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
130	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	189	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
131	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	190	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
132	@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';
133	@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)
134		194
135	# 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
136	# within the Safe compartment.	196	# within the Safe compartment.
137	for my $pkg (qw(	197	for my $pkg (qw(
138	cf::global cf::attachable	198	cf::global cf::attachable
…		…
147		207
148	$Event::DIED = sub {	208	$Event::DIED = sub {
149	warn "error in event callback: @_";	209	warn "error in event callback: @_";
150	};	210	};
151		211
152	my %ext_pkg;
153	my @exts;
154	my @hook;
155
156	=head2 UTILITY FUNCTIONS	212	=head2 UTILITY FUNCTIONS
157		213
158	=over 4	214	=over 4
159		215
160	=cut	216	=item dumpval $ref
161		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
162	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
163		240
164	=item $ref = cf::from_json $json	241	=item $ref = cf::from_json $json
165		242
166	Converts a JSON string into the corresponding perl data structure.	243	Converts a JSON string into the corresponding perl data structure.
167		244
168	=cut
169
170	sub from_json($) {
171	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
172	JSON::Syck::Load $_[0]
173	}
174
175	=item $json = cf::to_json $ref	245	=item $json = cf::to_json $ref
176		246
177	Converts a perl data structure into its JSON representation.	247	Converts a perl data structure into its JSON representation.
178		248
179	=cut
180
181	sub to_json($) {
182	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
183	JSON::Syck::Dump $_[0]
184	}
185
186	=item my $guard = cf::guard { BLOCK }
187
188	Run the given callback when the guard object gets destroyed (useful for
189	coroutine cancellations).
190
191	You can call C<< ->cancel >> on the guard object to stop the block from
192	being executed.
193
194	=cut
195
196	sub guard(&) {
197	bless \(my $cb = $_[0]), cf::guard::;
198	}
199
200	sub cf::guard::cancel {
201	${$_[0]} = sub { };
202	}
203
204	sub cf::guard::DESTROY {
205	${$_[0]}->();
206	}
207
208	=item cf::lock_wait $string	249	=item cf::lock_wait $string
209		250
210	Wait until the given lock is available. See cf::lock_acquire.	251	Wait until the given lock is available. See cf::lock_acquire.
211		252
212	=item my $lock = cf::lock_acquire $string	253	=item my $lock = cf::lock_acquire $string
213		254
214	Wait until the given lock is available and then acquires it and returns	255	Wait until the given lock is available and then acquires it and returns
215	a guard object. If the guard object gets destroyed (goes out of scope,	256	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
216	for example when the coroutine gets canceled), the lock is automatically	257	for example when the coroutine gets canceled), the lock is automatically
217	returned.	258	returned.
218		259
219	Lock names should begin with a unique identifier (for example, find_map	260	Lock names should begin with a unique identifier (for example, cf::map::find
220	uses map_find and load_map uses map_load).	261	uses map_find and cf::map::load uses map_load).
		262
		263	=item $locked = cf::lock_active $string
		264
		265	Return true if the lock is currently active, i.e. somebody has locked it.
221		266
222	=cut	267	=cut
223		268
224	our %LOCK;	269	our %LOCK;
225		270
…		…
239	# wait, to be sure we are not locked	284	# wait, to be sure we are not locked
240	lock_wait $key;	285	lock_wait $key;
241		286
242	$LOCK{$key} = [];	287	$LOCK{$key} = [];
243		288
244	cf::guard {	289	Coro::guard {
245	# wake up all waiters, to be on the safe side	290	# wake up all waiters, to be on the safe side
246	$_->ready for @{ delete $LOCK{$key} };	291	$_->ready for @{ delete $LOCK{$key} };
247	}	292	}
248	}	293	}
249		294
		295	sub lock_active($) {
		296	my ($key) = @_;
		297
		298	! ! $LOCK{$key}
		299	}
		300
		301	sub freeze_mainloop {
		302	return unless $TICK_WATCHER->is_active;
		303
		304	my $guard = Coro::guard {
		305	$TICK_WATCHER->start;
		306	};
		307	$TICK_WATCHER->stop;
		308	$guard
		309	}
		310
250	=item cf::async { BLOCK }	311	=item cf::async { BLOCK }
251		312
252	Like C<Coro::async>, but runs the given BLOCK in an eval and only logs the	313	Currently the same as Coro::async_pool, meaning you cannot use
253	error instead of exiting the server in case of a problem.	314	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		315	thing you are allowed to do is call C<prio> on it.
254		316
255	=cut	317	=cut
256		318
257	sub async(&) {	319	BEGIN { *async = \&Coro::async_pool }
258	my ($cb) = @_;
259
260	Coro::async {
261	eval { $cb->() };
262	warn $@ if $@;
263	}
264	}
265		320
266	=item cf::sync_job { BLOCK }	321	=item cf::sync_job { BLOCK }
267		322
268	The design of crossfire+ requires that the main coro ($Coro::main) is	323	The design of crossfire+ requires that the main coro ($Coro::main) is
269	always able to handle events or runnable, as crossfire+ is only partly	324	always able to handle events or runnable, as crossfire+ is only partly
…		…
278		333
279	sub sync_job(&) {	334	sub sync_job(&) {
280	my ($job) = @_;	335	my ($job) = @_;
281		336
282	if ($Coro::current == $Coro::main) {	337	if ($Coro::current == $Coro::main) {
		338	my $time = Event::time;
		339
283	# this is the main coro, too bad, we have to block	340	# this is the main coro, too bad, we have to block
284	# till the operation succeeds, freezing the server :/	341	# till the operation succeeds, freezing the server :/
285		342
286	# TODO: use suspend/resume instead	343	# TODO: use suspend/resume instead
287	# (but this is cancel-safe)	344	# (but this is cancel-safe)
288	local $FREEZE = 1;	345	my $freeze_guard = freeze_mainloop;
289		346
290	my $busy = 1;	347	my $busy = 1;
291	my @res;	348	my @res;
292		349
293	(Coro::async {	350	(async {
294	@res = eval { $job->() };	351	@res = eval { $job->() };
295	warn $@ if $@;	352	warn $@ if $@;
296	undef $busy;	353	undef $busy;
297	})->prio (Coro::PRIO_MAX);	354	})->prio (Coro::PRIO_MAX);
298		355
299	while ($busy) {	356	while ($busy) {
300	Coro::cede_notself;	357	Coro::cede or Event::one_event;
301	Event::one_event unless Coro::nready;
302	}	358	}
		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
303		366
304	wantarray ? @res : $res[0]	367	wantarray ? @res : $res[0]
305	} else {	368	} else {
306	# we are in another coroutine, how wonderful, everything just works	369	# we are in another coroutine, how wonderful, everything just works
307		370
308	$job->()	371	$job->()
309	}	372	}
310	}	373	}
311		374
312	=item $coro = cf::coro { BLOCK }	375	=item $coro = cf::async_ext { BLOCK }
313		376
314	Creates and returns a new coro. This coro is automcatially being canceled	377	Like async, but this coro is automatically being canceled when the
315	when the extension calling this is being unloaded.	378	extension calling this is being unloaded.
316		379
317	=cut	380	=cut
318		381
319	sub coro(&) {	382	sub async_ext(&) {
320	my $cb = shift;	383	my $cb = shift;
321		384
322	my $coro = &cf::async ($cb);	385	my $coro = &Coro::async ($cb);
323		386
324	$coro->on_destroy (sub {	387	$coro->on_destroy (sub {
325	delete $EXT_CORO{$coro+0};	388	delete $EXT_CORO{$coro+0};
326	});	389	});
327	$EXT_CORO{$coro+0} = $coro;	390	$EXT_CORO{$coro+0} = $coro;
328		391
329	$coro	392	$coro
330	}	393	}
331		394
332	sub write_runtime {	395	sub write_runtime {
333	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";
334		404
335	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	405	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
336	or return;	406	or return;
337		407
		408	my $value = $cf::RUNTIME + 90 + 10;
338	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
339	(aio_write $fh, 0, (length $value), $value, 0) <= 0	412	(aio_write $fh, 0, (length $value), $value, 0) <= 0
340	and return;	413	and return;
341		414
		415	# always fsync - this file is important
342	aio_fsync $fh	416	aio_fsync $fh
343	and return;	417	and return;
344		418
		419	# touch it again to show we are up-to-date
		420	aio_utime $fh, undef, undef;
		421
345	close $fh	422	close $fh
346	or return;	423	or return;
347		424
348	aio_rename "$runtime~", $runtime	425	aio_rename "$runtime~", $runtime
349	and return;	426	and return;
350		427
		428	warn "runtime file written.\n";
		429
351	1	430	1
352	}	431	}
353		432
		433	=item cf::datalog type => key => value, ...
		434
		435	Log a datalog packet of the given type with the given key-value pairs.
		436
		437	=cut
		438
		439	sub datalog($@) {
		440	my ($type, %kv) = @_;
		441	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
		442	}
		443
354	=back	444	=back
355		445
356	=cut	446	=cut
357
358	#############################################################################
359
360	package cf::path;
361
362	sub new {
363	my ($class, $path, $base) = @_;
364
365	$path = $path->as_string if ref $path;
366
367	my $self = bless { }, $class;
368
369	# {... are special paths that are not touched
370	# ?xxx/... are special absolute paths
371	# ?random/... random maps
372	# /! non-realised random map exit
373	# /... normal maps
374	# ~/... per-player maps without a specific player (DO NOT USE)
375	# ~user/... per-player map of a specific user
376
377	if ($path =~ /^{/) {
378	# fine as it is
379	} elsif ($path =~ s{^\?random/}{}) {
380	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
381	$self->{random} = cf::from_json $data;
382	} else {
383	if ($path =~ s{^~([^/]+)?}{}) {
384	$self->{user_rel} = 1;
385
386	if (defined $1) {
387	$self->{user} = $1;
388	} elsif ($base =~ m{^~([^/]+)/}) {
389	$self->{user} = $1;
390	} else {
391	warn "cannot resolve user-relative path without user <$path,$base>\n";
392	}
393	} elsif ($path =~ /^\//) {
394	# already absolute
395	} else {
396	$base =~ s{[^/]+/?$}{};
397	return $class->new ("$base/$path");
398	}
399
400	for ($path) {
401	redo if s{/\.?/}{/};
402	redo if s{/[^/]+/\.\./}{/};
403	}
404	}
405
406	$self->{path} = $path;
407
408	$self
409	}
410
411	# the name / primary key / in-game path
412	sub as_string {
413	my ($self) = @_;
414
415	$self->{user_rel} ? "~$self->{user}$self->{path}"
416	: $self->{random} ? "?random/$self->{path}"
417	: $self->{path}
418	}
419
420	# the displayed name, this is a one way mapping
421	sub visible_name {
422	my ($self) = @_;
423
424	# if (my $rmp = $self->{random}) {
425	# # todo: be more intelligent about this
426	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
427	# } else {
428	$self->as_string
429	# }
430	}
431
432	# escape the /'s in the path
433	sub _escaped_path {
434	# ∕ is U+2215
435	(my $path = $_[0]{path}) =~ s/\//∕/g;
436	$path
437	}
438
439	# the original (read-only) location
440	sub load_path {
441	my ($self) = @_;
442
443	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
444	}
445
446	# the temporary/swap location
447	sub save_path {
448	my ($self) = @_;
449
450	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
451	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
452	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
453	}
454
455	# the unique path, might be eq to save_path
456	sub uniq_path {
457	my ($self) = @_;
458
459	$self->{user_rel} || $self->{random}
460	? undef
461	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
462	}
463
464	# return random map parameters, or undef
465	sub random_map_params {
466	my ($self) = @_;
467
468	$self->{random}
469	}
470
471	# this is somewhat ugly, but style maps do need special treatment
472	sub is_style_map {
473	$_[0]{path} =~ m{^/styles/}
474	}
475
476	package cf;
477		447
478	#############################################################################	448	#############################################################################
479		449
480	=head2 ATTACHABLE OBJECTS	450	=head2 ATTACHABLE OBJECTS
481		451
…		…
607	our @CB_TYPE = (); # registry for type (cf-object class) based events	577	our @CB_TYPE = (); # registry for type (cf-object class) based events
608	our @CB_MAP = ();	578	our @CB_MAP = ();
609		579
610	my %attachment;	580	my %attachment;
611		581
		582	sub cf::attachable::thawer_merge {
		583	# simply override everything except _meta
		584	local $_[0]{_meta};
		585	%{$_[0]} = %{$_[1]};
		586	}
		587
612	sub _attach_cb($$$$) {	588	sub _attach_cb($$$$) {
613	my ($registry, $event, $prio, $cb) = @_;	589	my ($registry, $event, $prio, $cb) = @_;
614		590
615	use sort 'stable';	591	use sort 'stable';
616		592
…		…
650	$registry = $CB_TYPE[$object_type] ||= [];	626	$registry = $CB_TYPE[$object_type] ||= [];
651		627
652	} elsif ($type eq "subtype") {	628	} elsif ($type eq "subtype") {
653	defined $object_type or Carp::croak "subtype specified without type";	629	defined $object_type or Carp::croak "subtype specified without type";
654	my $object_subtype = shift @arg;	630	my $object_subtype = shift @arg;
655	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	631	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
656		632
657	} elsif ($type eq "package") {	633	} elsif ($type eq "package") {
658	my $pkg = shift @arg;	634	my $pkg = shift @arg;
659		635
660	while (my ($name, $id) = each %cb_id) {	636	while (my ($name, $id) = each %cb_id) {
…		…
701	if (ref $_[0]) {	677	if (ref $_[0]) {
702	_object_attach @_;	678	_object_attach @_;
703	} else {	679	} else {
704	_attach shift->_attach_registry, @_;	680	_attach shift->_attach_registry, @_;
705	}	681	}
		682	_recalc_want;
706	};	683	};
707		684
708	# all those should be optimised	685	# all those should be optimised
709	sub cf::attachable::detach {	686	sub cf::attachable::detach {
710	my ($obj, $name) = @_;	687	my ($obj, $name) = @_;
…		…
713	delete $obj->{_attachment}{$name};	690	delete $obj->{_attachment}{$name};
714	reattach ($obj);	691	reattach ($obj);
715	} else {	692	} else {
716	Carp::croak "cannot, currently, detach class attachments";	693	Carp::croak "cannot, currently, detach class attachments";
717	}	694	}
		695	_recalc_want;
718	};	696	};
719		697
720	sub cf::attachable::attached {	698	sub cf::attachable::attached {
721	my ($obj, $name) = @_;	699	my ($obj, $name) = @_;
722		700
…		…
787	# object support	765	# object support
788		766
789	sub reattach {	767	sub reattach {
790	# basically do the same as instantiate, without calling instantiate	768	# basically do the same as instantiate, without calling instantiate
791	my ($obj) = @_;	769	my ($obj) = @_;
		770
		771	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
792		772
793	my $registry = $obj->registry;	773	my $registry = $obj->registry;
794		774
795	@$registry = ();	775	@$registry = ();
796		776
…		…
843	$filename, length $$rdata, scalar @$objs;	823	$filename, length $$rdata, scalar @$objs;
844		824
845	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	825	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
846	chmod SAVE_MODE, $fh;	826	chmod SAVE_MODE, $fh;
847	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	827	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
848	aio_fsync $fh;	828	aio_fsync $fh if $cf::USE_FSYNC;
849	close $fh;	829	close $fh;
850		830
851	if (@$objs) {	831	if (@$objs) {
852	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) {
853	chmod SAVE_MODE, $fh;	833	chmod SAVE_MODE, $fh;
854	my $data = Storable::nfreeze { version => 1, objs => $objs };	834	my $data = Storable::nfreeze { version => 1, objs => $objs };
855	aio_write $fh, 0, (length $data), $data, 0;	835	aio_write $fh, 0, (length $data), $data, 0;
856	aio_fsync $fh;	836	aio_fsync $fh if $cf::USE_FSYNC;
857	close $fh;	837	close $fh;
858	aio_rename "$filename.pst~", "$filename.pst";	838	aio_rename "$filename.pst~", "$filename.pst";
859	}	839	}
860	} else {	840	} else {
861	aio_unlink "$filename.pst";	841	aio_unlink "$filename.pst";
…		…
893	or return;	873	or return;
894	$av = eval { (Storable::thaw $av)->{objs} };	874	$av = eval { (Storable::thaw $av)->{objs} };
895	}	875	}
896		876
897	warn sprintf "loading %s (%d)\n",	877	warn sprintf "loading %s (%d)\n",
898	$filename, length $data, scalar @{$av || []};#d#	878	$filename, length $data, scalar @{$av || []};
899	return ($data, $av);	879	return ($data, $av);
900	}	880	}
901		881
902	#############################################################################	882	#############################################################################
903	# command handling &c	883	# command handling &c
…		…
928	=cut	908	=cut
929		909
930	sub register_extcmd {	910	sub register_extcmd {
931	my ($name, $cb) = @_;	911	my ($name, $cb) = @_;
932		912
933	my $caller = caller;
934	#warn "registering extcmd '$name' to '$caller'";
935
936	$EXTCMD{$name} = [$cb, $caller];	913	$EXTCMD{$name} = $cb;
937	}	914	}
938		915
939	cf::player->attach (	916	cf::player->attach (
940	on_command => sub {	917	on_command => sub {
941	my ($pl, $name, $params) = @_;	918	my ($pl, $name, $params) = @_;
…		…
954		931
955	my $msg = eval { from_json $buf };	932	my $msg = eval { from_json $buf };
956		933
957	if (ref $msg) {	934	if (ref $msg) {
958	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	935	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
959	if (my %reply = $cb->[0]->($pl, $msg)) {	936	if (my %reply = $cb->($pl, $msg)) {
960	$pl->ext_reply ($msg->{msgid}, %reply);	937	$pl->ext_reply ($msg->{msgid}, %reply);
961	}	938	}
962	}	939	}
963	} else {	940	} else {
964	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	941	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
966		943
967	cf::override;	944	cf::override;
968	},	945	},
969	);	946	);
970		947
971	sub register {
972	my ($base, $pkg) = @_;
973
974	#TODO
975	}
976
977	sub load_extension {	948	sub load_extension {
978	my ($path) = @_;	949	my ($path) = @_;
979		950
980	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	951	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
981	my $base = $1;	952	my $base = $1;
982	my $pkg = $1;	953	my $pkg = $1;
983	$pkg =~ s/[^[:word:]]/_/g;	954	$pkg =~ s/[^[:word:]]/_/g;
984	$pkg = "ext::$pkg";	955	$pkg = "ext::$pkg";
985		956
986	warn "loading '$path' into '$pkg'\n";	957	warn "... loading '$path' into '$pkg'\n";
987		958
988	open my $fh, "<:utf8", $path	959	open my $fh, "<:utf8", $path
989	or die "$path: $!";	960	or die "$path: $!";
990		961
991	my $source =	962	my $source =
992	"package $pkg; use strict; use utf8;\n"	963	"package $pkg; use strict; use utf8;\n"
993	. "#line 1 \"$path\"\n{\n"	964	. "#line 1 \"$path\"\n{\n"
994	. (do { local $/; <$fh> })	965	. (do { local $/; <$fh> })
995	. "\n};\n1";	966	. "\n};\n1";
996		967
997	eval $source	968	unless (eval $source) {
998	or die $@ ? "$path: $@\n"	969	my $msg = $@ ? "$path: $@\n"
999	: "extension disabled.\n";	970	: "extension disabled.\n";
1000		971	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
1001	push @exts, $pkg;	972	warn $@;
1002	$ext_pkg{$base} = $pkg;	973	warn "mandatory extension failed to load, exiting.\n";
1003		974	exit 1;
1004	# no strict 'refs';	975	}
1005	# @{"$pkg\::ISA"} = ext::;	976	die $@;
1006
1007	register $base, $pkg;
1008	}
1009
1010	sub unload_extension {
1011	my ($pkg) = @_;
1012
1013	warn "removing extension $pkg\n";
1014
1015	# remove hooks
1016	#TODO
1017	# for my $idx (0 .. $#PLUGIN_EVENT) {
1018	# delete $hook[$idx]{$pkg};
1019	# }	977	}
1020		978
1021	# remove commands	979	push @EXTS, $pkg;
1022	for my $name (keys %COMMAND) {
1023	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1024
1025	if (@cb) {
1026	$COMMAND{$name} = \@cb;
1027	} else {
1028	delete $COMMAND{$name};
1029	}
1030	}
1031
1032	# remove extcmds
1033	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1034	delete $EXTCMD{$name};
1035	}
1036
1037	if (my $cb = $pkg->can ("unload")) {
1038	eval {
1039	$cb->($pkg);
1040	1
1041	} or warn "$pkg unloaded, but with errors: $@";
1042	}
1043
1044	Symbol::delete_package $pkg;
1045	}	980	}
1046		981
1047	sub load_extensions {	982	sub load_extensions {
1048	for my $ext (<$LIBDIR/*.ext>) {	983	for my $ext (<$LIBDIR/*.ext>) {
1049	next unless -r $ext;	984	next unless -r $ext;
…		…
1053	} or warn "$ext not loaded: $@";	988	} or warn "$ext not loaded: $@";
1054	}	989	}
1055	}	990	}
1056		991
1057	#############################################################################	992	#############################################################################
1058	# load/save/clean perl data associated with a map
1059
1060	*cf::mapsupport::on_clean = sub {
1061	my ($map) = @_;
1062
1063	my $path = $map->tmpname;
1064	defined $path or return;
1065
1066	unlink "$path.pst";
1067	};
1068
1069	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1070
1071	#############################################################################
1072	# load/save perl data associated with player->ob objects
1073
1074	sub all_objects(@) {
1075	@_, map all_objects ($_->inv), @_
1076	}
1077
1078	# TODO: compatibility cruft, remove when no longer needed
1079	cf::player->attach (
1080	on_load => sub {
1081	my ($pl, $path) = @_;
1082
1083	for my $o (all_objects $pl->ob) {
1084	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1085	$o->set_ob_key_value ("_perl_data");
1086
1087	%$o = %{ Storable::thaw pack "H*", $value };
1088	}
1089	}
1090	},
1091	);
1092
1093	#############################################################################
1094		993
1095	=head2 CORE EXTENSIONS	994	=head2 CORE EXTENSIONS
1096		995
1097	Functions and methods that extend core crossfire objects.	996	Functions and methods that extend core crossfire objects.
1098		997
		998	=cut
		999
		1000	package cf::player;
		1001
		1002	use Coro::AIO;
		1003
1099	=head3 cf::player	1004	=head3 cf::player
1100		1005
1101	=over 4	1006	=over 4
1102		1007
1103	=item cf::player::exists $login	1008	=item cf::player::find $login
1104		1009
1105	Returns true when the given account exists.	1010	Returns the given player object, loading it if necessary (might block).
1106		1011
1107	=cut	1012	=cut
1108		1013
1109	sub cf::player::exists($) {	1014	sub playerdir($) {
1110	cf::player::find $_[0]	1015	"$PLAYERDIR/"
1111	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	1016	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1112	}	1017	}
1113		1018
		1019	sub path($) {
		1020	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1021
		1022	(playerdir $login) . "/playerdata"
		1023	}
		1024
		1025	sub find_active($) {
		1026	$cf::PLAYER{$_[0]}
		1027	and $cf::PLAYER{$_[0]}->active
		1028	and $cf::PLAYER{$_[0]}
		1029	}
		1030
		1031	sub exists($) {
		1032	my ($login) = @_;
		1033
		1034	$cf::PLAYER{$login}
		1035	or cf::sync_job { !aio_stat path $login }
		1036	}
		1037
		1038	sub find($) {
		1039	return $cf::PLAYER{$_[0]} || do {
		1040	my $login = $_[0];
		1041
		1042	my $guard = cf::lock_acquire "user_find:$login";
		1043
		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	}
		1056	}
		1057	}
		1058
		1059	sub save($) {
		1060	my ($pl) = @_;
		1061
		1062	return if $pl->{deny_save};
		1063
		1064	my $path = path $pl;
		1065	my $guard = cf::lock_acquire "user_save:$path";
		1066
		1067	return if $pl->{deny_save};
		1068
		1069	aio_mkdir playerdir $pl, 0770;
		1070	$pl->{last_save} = $cf::RUNTIME;
		1071
		1072	$pl->save_pl ($path);
		1073	Coro::cede;
		1074	}
		1075
		1076	sub new($) {
		1077	my ($login) = @_;
		1078
		1079	my $self = create;
		1080
		1081	$self->ob->name ($login);
		1082	$self->{deny_save} = 1;
		1083
		1084	$cf::PLAYER{$login} = $self;
		1085
		1086	$self
		1087	}
		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
1114	=item $player->ext_reply ($msgid, $msgtype, %msg)	1190	=item $player->ext_reply ($msgid, %msg)
1115		1191
1116	Sends an ext reply to the player.	1192	Sends an ext reply to the player.
1117		1193
1118	=cut	1194	=cut
1119		1195
1120	sub cf::player::ext_reply($$$%) {	1196	sub ext_reply($$%) {
1121	my ($self, $id, %msg) = @_;	1197	my ($self, $id, %msg) = @_;
1122		1198
1123	$msg{msgid} = $id;	1199	$msg{msgid} = $id;
1124		1200
1125	$self->send ("ext " . to_json \%msg);	1201	$self->send ("ext " . cf::to_json \%msg);
		1202	}
		1203
		1204	=item $player->ext_event ($type, %msg)
		1205
		1206	Sends an ext event to the client.
		1207
		1208	=cut
		1209
		1210	sub ext_event($$%) {
		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
1126	}	1243	}
1127		1244
1128	=back	1245	=back
1129
1130		1246
1131	=head3 cf::map	1247	=head3 cf::map
1132		1248
1133	=over 4	1249	=over 4
1134		1250
…		…
1137	package cf::map;	1253	package cf::map;
1138		1254
1139	use Fcntl;	1255	use Fcntl;
1140	use Coro::AIO;	1256	use Coro::AIO;
1141		1257
		1258	use overload
		1259	'""' => \&as_string,
		1260	fallback => 1;
		1261
1142	our $MAX_RESET = 7200;	1262	our $MAX_RESET = 3600;
1143	our $DEFAULT_RESET = 3600;	1263	our $DEFAULT_RESET = 3000;
1144		1264
1145	sub generate_random_map {	1265	sub generate_random_map {
1146	my ($path, $rmp) = @_;	1266	my ($self, $rmp) = @_;
1147
1148	# mit "rum" bekleckern, nicht	1267	# mit "rum" bekleckern, nicht
1149	cf::map::_create_random_map	1268	$self->_create_random_map (
1150	$path,
1151	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1269	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1152	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1270	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1153	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1271	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1154	$rmp->{exit_on_final_map},	1272	$rmp->{exit_on_final_map},
1155	$rmp->{xsize}, $rmp->{ysize},	1273	$rmp->{xsize}, $rmp->{ysize},
1156	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1274	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1157	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1275	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1158	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1276	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1159	$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},
1160	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1278	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1161	(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"
1162	}	1408	}
1163		1409
1164	# and all this just because we cannot iterate over	1410	# and all this just because we cannot iterate over
1165	# all maps in C++...	1411	# all maps in C++...
1166	sub change_all_map_light {	1412	sub change_all_map_light {
…		…
1168		1414
1169	$_->change_map_light ($change)	1415	$_->change_map_light ($change)
1170	for grep $_->outdoor, values %cf::MAP;	1416	for grep $_->outdoor, values %cf::MAP;
1171	}	1417	}
1172		1418
		1419	sub decay_objects {
		1420	my ($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
1173	sub try_load_header($) {	1435	sub load_header_from($) {
1174	my ($path) = @_;	1436	my ($self, $path) = @_;
1175		1437
1176	utf8::encode $path;	1438	utf8::encode $path;
1177	aio_open $path, O_RDONLY, 0	1439	#aio_open $path, O_RDONLY, 0
		1440	# or return;
		1441
		1442	$self->_load_header ($path)
1178	or return;	1443	or return;
1179		1444
1180	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
1181	or return;	1488	or return;
		1489	$self->prepare_orig;
		1490	}
1182		1491
1183	$map->load_header ($path)	1492	$self->{deny_reset} = 1
1184	or return;	1493	if $self->no_reset;
1185		1494
1186	$map->{load_path} = $path;	1495	$self->default_region (cf::region::find_by_path $self->{path})
		1496	unless $self->default_region;
1187		1497
1188	$map	1498	1
1189	}	1499	}
1190		1500
1191	sub find_map;	1501	sub find;
1192	sub find_map {	1502	sub find {
1193	my ($path, $origin) = @_;	1503	my ($path, $origin) = @_;
1194		1504
1195	#warn "find_map<$path,$origin>\n";#d#
1196
1197	$path = new cf::path $path, $origin && $origin->path;	1505	$path = normalise $path, $origin && $origin->path;
1198	my $key = $path->as_string;
1199		1506
1200	cf::lock_wait "map_find:$key";	1507	cf::lock_wait "map_find:$path";
1201		1508
1202	$cf::MAP{$key} || do {	1509	$cf::MAP{$path} || do {
1203	my $guard = cf::lock_acquire "map_find:$key";	1510	my $guard = cf::lock_acquire "map_find:$path";
1204		1511	my $map = new_from_path cf::map $path
1205	# do it the slow way
1206	my $map = try_load_header $path->save_path;
1207
1208	if ($map) {
1209	# safety
1210	$map->{instantiate_time} = $cf::RUNTIME
1211	if $map->{instantiate_time} > $cf::RUNTIME;
1212	} else {
1213	if (my $rmp = $path->random_map_params) {
1214	$map = generate_random_map $key, $rmp;
1215	} else {
1216	$map = try_load_header $path->load_path;
1217	}
1218
1219	$map or return;	1512	or return;
1220		1513
1221	$map->{load_original} = 1;
1222	$map->{instantiate_time} = $cf::RUNTIME;
1223	$map->instantiate;
1224
1225	# per-player maps become, after loading, normal maps
1226	$map->per_player (0) if $path->{user_rel};
1227	}
1228
1229	$map->path ($key);
1230	$map->{path} = $path;
1231	$map->{last_save} = $cf::RUNTIME;	1514	$map->{last_save} = $cf::RUNTIME;
1232	$map->last_access ($cf::RUNTIME);
1233		1515
1234	if ($map->should_reset) {	1516	$map->load_header
		1517	or return;
		1518
		1519	if ($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;
1235	$map->reset;	1522	$map->reset;
1236	undef $guard;	1523	undef $guard;
1237	$map = find_map $path	1524	return find $path;
1238	or return;
1239	}	1525	}
1240		1526
1241	$cf::MAP{$key} = $map	1527	$cf::MAP{$path} = $map
1242	}	1528	}
1243	}	1529	}
		1530
		1531	sub pre_load { }
		1532	sub post_load { }
1244		1533
1245	sub load {	1534	sub load {
1246	my ($self) = @_;	1535	my ($self) = @_;
1247		1536
		1537	local $self->{deny_reset} = 1; # loading can take a long time
		1538
1248	my $path = $self->{path};	1539	my $path = $self->{path};
		1540
		1541	{
1249	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1542	my $guard = cf::lock_acquire "map_load:$path";
1250		1543
1251	return if $self->in_memory != cf::MAP_SWAPPED;	1544	return if $self->in_memory != cf::MAP_SWAPPED;
1252		1545
1253	$self->in_memory (cf::MAP_LOADING);	1546	$self->in_memory (cf::MAP_LOADING);
1254		1547
1255	$self->alloc;	1548	$self->alloc;
		1549
		1550	$self->pre_load;
		1551	Coro::cede;
		1552
1256	$self->load_objects ($self->{load_path}, 1)	1553	$self->_load_objects ($self->{load_path}, 1)
1257	or return;	1554	or return;
1258		1555
1259	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1556	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1260	if delete $self->{load_original};	1557	if delete $self->{load_original};
1261		1558
1262	if (my $uniq = $path->uniq_path) {	1559	if (my $uniq = $self->uniq_path) {
1263	utf8::encode $uniq;	1560	utf8::encode $uniq;
1264	if (aio_open $uniq, O_RDONLY, 0) {	1561	if (aio_open $uniq, O_RDONLY, 0) {
1265	$self->clear_unique_items;	1562	$self->clear_unique_items;
1266	$self->load_objects ($uniq, 0);	1563	$self->_load_objects ($uniq, 0);
1267	}	1564	}
1268	}	1565	}
1269		1566
		1567	Coro::cede;
1270	# now do the right thing for maps	1568	# now do the right thing for maps
1271	$self->link_multipart_objects;	1569	$self->link_multipart_objects;
1272
1273	if ($self->{path}->is_style_map) {
1274	$self->{deny_save} = 1;
1275	$self->{deny_reset} = 1;
1276	} else {
1277	$self->fix_auto_apply;
1278	$self->decay_objects;
1279	$self->update_buttons;
1280	$self->set_darkness_map;
1281	$self->difficulty ($self->estimate_difficulty)	1570	$self->difficulty ($self->estimate_difficulty)
1282	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;
1283	$self->activate;	1581	$self->activate;
1284	}	1582	}
1285		1583
1286	$self->in_memory (cf::MAP_IN_MEMORY);	1584	$self->in_memory (cf::MAP_IN_MEMORY);
1287	}	1585	}
1288		1586
1289	sub load_map_sync {	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	$neigh->load;
		1623	}
		1624	}
		1625
		1626	sub find_sync {
1290	my ($path, $origin) = @_;	1627	my ($path, $origin) = @_;
1291		1628
1292	#warn "load_map_sync<$path, $origin>\n";#d#	1629	cf::sync_job { find $path, $origin }
		1630	}
1293		1631
1294	cf::sync_job {	1632	sub do_load_sync {
1295	my $map = cf::map::find_map $path, $origin	1633	my ($map) = @_;
1296	or return;	1634
		1635	cf::sync_job { $map->load };
		1636	}
		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;
1297	$map->load;	1656	$map->load;
1298	$map	1657
		1658	delete $MAP_PREFETCH{$path};
		1659	}
		1660	}
		1661	undef $MAP_PREFETCHER;
1299	}	1662	};
		1663	$MAP_PREFETCHER->prio (6);
		1664
		1665	()
1300	}	1666	}
1301		1667
1302	sub save {	1668	sub save {
1303	my ($self) = @_;	1669	my ($self) = @_;
1304		1670
		1671	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1672
1305	$self->{last_save} = $cf::RUNTIME;	1673	$self->{last_save} = $cf::RUNTIME;
1306		1674
1307	return unless $self->dirty;	1675	return unless $self->dirty;
1308		1676
1309	my $save = $self->{path}->save_path; utf8::encode $save;	1677	my $save = $self->save_path; utf8::encode $save;
1310	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	1678	my $uniq = $self->uniq_path; utf8::encode $uniq;
1311		1679
1312	$self->{load_path} = $save;	1680	$self->{load_path} = $save;
1313		1681
1314	return if $self->{deny_save};	1682	return if $self->{deny_save};
1315		1683
		1684	local $self->{last_access} = $self->last_access;#d#
		1685
		1686	cf::async {
		1687	$_->contr->save for $self->players;
		1688	};
		1689
1316	if ($uniq) {	1690	if ($uniq) {
1317	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1691	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1318	$self->save_objects ($uniq, cf::IO_UNIQUES);	1692	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1319	} else {	1693	} else {
1320	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1694	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1321	}	1695	}
1322	}	1696	}
1323		1697
1324	sub swap_out {	1698	sub swap_out {
1325	my ($self) = @_;	1699	my ($self) = @_;
		1700
		1701	# save first because save cedes
		1702	$self->save;
		1703
		1704	my $lock = cf::lock_acquire "map_data:" . $self->path;
1326		1705
1327	return if $self->players;	1706	return if $self->players;
1328	return if $self->in_memory != cf::MAP_IN_MEMORY;	1707	return if $self->in_memory != cf::MAP_IN_MEMORY;
1329	return if $self->{deny_save};	1708	return if $self->{deny_save};
1330		1709
1331	$self->save;
1332	$self->clear;	1710	$self->clear;
1333	$self->in_memory (cf::MAP_SWAPPED);	1711	$self->in_memory (cf::MAP_SWAPPED);
1334	}	1712	}
1335		1713
1336	sub reset_at {	1714	sub reset_at {
1337	my ($self) = @_;	1715	my ($self) = @_;
1338		1716
1339	# TODO: safety, remove and allow resettable per-player maps	1717	# TODO: safety, remove and allow resettable per-player maps
1340	return 1e99 if $self->{path}{user_rel};
1341	return 1e99 if $self->{deny_reset};	1718	return 1e99 if $self->{deny_reset};
1342		1719
1343	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1720	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1344	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1721	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1345		1722
…		…
1350	my ($self) = @_;	1727	my ($self) = @_;
1351		1728
1352	$self->reset_at <= $cf::RUNTIME	1729	$self->reset_at <= $cf::RUNTIME
1353	}	1730	}
1354		1731
1355	sub unlink_save {
1356	my ($self) = @_;
1357
1358	utf8::encode (my $save = $self->{path}->save_path);
1359	aioreq_pri 3; IO::AIO::aio_unlink $save;
1360	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1361	}
1362
1363	sub rename {
1364	my ($self, $new_path) = @_;
1365
1366	$self->unlink_save;
1367
1368	delete $cf::MAP{$self->path};
1369	$self->{path} = new cf::path $new_path;
1370	$self->path ($self->{path}->as_string);
1371	$cf::MAP{$self->path} = $self;
1372
1373	$self->save;
1374	}
1375
1376	sub reset {	1732	sub reset {
1377	my ($self) = @_;	1733	my ($self) = @_;
1378		1734
		1735	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1736
1379	return if $self->players;	1737	return if $self->players;
1380	return if $self->{path}{user_rel};#d#
1381		1738
1382	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	}
1383		1750
1384	delete $cf::MAP{$self->path};	1751	delete $cf::MAP{$self->path};
		1752
		1753	$self->clear;
1385		1754
1386	$_->clear_links_to ($self) for values %cf::MAP;	1755	$_->clear_links_to ($self) for values %cf::MAP;
1387		1756
1388	$self->unlink_save;	1757	$self->unlink_save;
1389	$self->destroy;	1758	$self->destroy;
…		…
1392	my $nuke_counter = "aaaa";	1761	my $nuke_counter = "aaaa";
1393		1762
1394	sub nuke {	1763	sub nuke {
1395	my ($self) = @_;	1764	my ($self) = @_;
1396		1765
		1766	delete $cf::MAP{$self->path};
		1767
		1768	$self->unlink_save;
		1769
		1770	bless $self, "cf::map";
		1771	delete $self->{deny_reset};
1397	$self->{deny_save} = 1;	1772	$self->{deny_save} = 1;
1398	$self->reset_timeout (1);	1773	$self->reset_timeout (1);
1399	$self->rename ("{nuke}/" . ($nuke_counter++));	1774	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1775
		1776	$cf::MAP{$self->path} = $self;
		1777
1400	$self->reset; # polite request, might not happen	1778	$self->reset; # polite request, might not happen
1401	}	1779	}
1402		1780
1403	sub customise_for {	1781	=item $maps = cf::map::tmp_maps
1404	my ($map, $ob) = @_;
1405		1782
1406	if ($map->per_player) {	1783	Returns an arrayref with all map paths of currently instantiated and saved
1407	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	1784	maps.
		1785
		1786	=cut
		1787
		1788	sub tmp_maps() {
1408	}	1789	[
1409		1790	map {
1410	$map	1791	utf8::decode $_;
		1792	!/\.(?:pst|meta)$/ && /^$PATH_SEP/o
		1793	? normalise $_
		1794	: ()
		1795	} @{ aio_readdir $TMPDIR or [] }
		1796	]
1411	}	1797	}
1412		1798
1413	sub emergency_save {	1799	=item cf::map::unique_maps
1414	local $cf::FREEZE = 1;
1415		1800
1416	warn "enter emergency map save\n";	1801	Returns an arrayref of paths of all shared maps that have
		1802	instantiated unique items. May block.
1417		1803
1418	cf::sync_job {	1804	=cut
1419	warn "begin emergency map save\n";
1420	$_->save for values %cf::MAP;
1421	};
1422		1805
1423	warn "end emergency map save\n";	1806	sub unique_maps() {
		1807	[
		1808	map {
		1809	utf8::decode $_;
		1810	!/\.(?:pst|meta)$/ && /^$PATH_SEP/o
		1811	? normalise $_
		1812	: ()
		1813	} @{ aio_readdir $UNIQUEDIR or [] }
		1814	]
1424	}	1815	}
1425		1816
1426	package cf;	1817	package cf;
1427		1818
1428	=back	1819	=back
1429		1820
		1821	=head3 cf::object
		1822
		1823	=cut
		1824
		1825	package cf::object;
		1826
		1827	=over 4
		1828
		1829	=item $ob->inv_recursive
		1830
		1831	Returns the inventory of the object _and_ their inventories, recursively.
		1832
		1833	=cut
		1834
		1835	sub inv_recursive_;
		1836	sub inv_recursive_ {
		1837	map { $_, inv_recursive_ $_->inv } @_
		1838	}
		1839
		1840	sub inv_recursive {
		1841	inv_recursive_ inv $_[0]
		1842	}
		1843
		1844	package cf;
		1845
		1846	=back
1430		1847
1431	=head3 cf::object::player	1848	=head3 cf::object::player
1432		1849
1433	=over 4	1850	=over 4
1434		1851
…		…
1474		1891
1475	=item $player_object->enter_link	1892	=item $player_object->enter_link
1476		1893
1477	Freezes the player and moves him/her to a special map (C<{link}>).	1894	Freezes the player and moves him/her to a special map (C<{link}>).
1478		1895
1479	The player should be reaosnably safe there for short amounts of time. You	1896	The player should be reasonably safe there for short amounts of time. You
1480	I<MUST> call C<leave_link> as soon as possible, though.	1897	I<MUST> call C<leave_link> as soon as possible, though.
1481		1898
		1899	Will never block.
		1900
1482	=item $player_object->leave_link ($map, $x, $y)	1901	=item $player_object->leave_link ($map, $x, $y)
1483		1902
1484	Moves the player out of the specila link map onto the given map. If the	1903	Moves the player out of the special C<{link}> map onto the specified
1485	map is not valid (or omitted), the player will be moved back to the	1904	map. If the map is not valid (or omitted), the player will be moved back
1486	location he/she was before the call to C<enter_link>, or, if that fails,	1905	to the location he/she was before the call to C<enter_link>, or, if that
1487	to the emergency map position.	1906	fails, to the emergency map position.
1488		1907
1489	Might block.	1908	Might block.
1490		1909
1491	=cut	1910	=cut
		1911
		1912	sub link_map {
		1913	unless ($LINK_MAP) {
		1914	$LINK_MAP = cf::map::find "{link}"
		1915	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		1916	$LINK_MAP->load;
		1917	}
		1918
		1919	$LINK_MAP
		1920	}
1492		1921
1493	sub cf::object::player::enter_link {	1922	sub cf::object::player::enter_link {
1494	my ($self) = @_;	1923	my ($self) = @_;
1495		1924
1496	$self->deactivate_recursive;	1925	$self->deactivate_recursive;
1497		1926
1498	return if $self->map == $LINK_MAP;	1927	return if UNIVERSAL::isa $self->map, "ext::map_link";
1499		1928
1500	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	1929	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1501	if $self->map;	1930	if $self->map && $self->map->{path} ne "{link}";
1502		1931
1503	$self->enter_map ($LINK_MAP, 20, 20);	1932	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1504	}	1933	}
1505		1934
1506	sub cf::object::player::leave_link {	1935	sub cf::object::player::leave_link {
1507	my ($self, $map, $x, $y) = @_;	1936	my ($self, $map, $x, $y) = @_;
		1937
		1938	return unless $self->contr->active;
1508		1939
1509	my $link_pos = delete $self->{_link_pos};	1940	my $link_pos = delete $self->{_link_pos};
1510		1941
1511	unless ($map) {	1942	unless ($map) {
1512	# restore original map position	1943	# restore original map position
1513	($map, $x, $y) = @{ $link_pos || [] };	1944	($map, $x, $y) = @{ $link_pos || [] };
1514	$map = cf::map::find_map $map;	1945	$map = cf::map::find $map;
1515		1946
1516	unless ($map) {	1947	unless ($map) {
1517	($map, $x, $y) = @$EMERGENCY_POSITION;	1948	($map, $x, $y) = @$EMERGENCY_POSITION;
1518	$map = cf::map::find_map $map	1949	$map = cf::map::find $map
1519	or die "FATAL: cannot load emergency map\n";	1950	or die "FATAL: cannot load emergency map\n";
1520	}	1951	}
1521	}	1952	}
1522		1953
1523	($x, $y) = (-1, -1)	1954	($x, $y) = (-1, -1)
…		…
1526	# use -1 or undef as default coordinates, not 0, 0	1957	# use -1 or undef as default coordinates, not 0, 0
1527	($x, $y) = ($map->enter_x, $map->enter_y)	1958	($x, $y) = ($map->enter_x, $map->enter_y)
1528	if $x <=0 && $y <= 0;	1959	if $x <=0 && $y <= 0;
1529		1960
1530	$map->load;	1961	$map->load;
		1962	$map->load_diag;
1531		1963
		1964	return unless $self->contr->active;
1532	$self->activate_recursive;	1965	$self->activate_recursive;
		1966
		1967	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1533	$self->enter_map ($map, $x, $y);	1968	$self->enter_map ($map, $x, $y);
1534	}	1969	}
1535		1970
1536	cf::player->attach (
1537	on_logout => sub {
1538	my ($pl) = @_;
1539
1540	# abort map switching before logout
1541	if ($pl->ob->{_link_pos}) {
1542	cf::sync_job {
1543	$pl->ob->leave_link
1544	};
1545	}
1546	},
1547	on_login => sub {
1548	my ($pl) = @_;
1549
1550	# try to abort aborted map switching on player login :)
1551	# should happen only on crashes
1552	if ($pl->ob->{_link_pos}) {
1553	$pl->ob->enter_link;
1554	cf::async {
1555	# we need this sleep as the login has a concurrent enter_exit running
1556	# and this sleep increases chances of the player not ending up in scorn
1557	Coro::Timer::sleep 1;
1558	$pl->ob->leave_link;
1559	};
1560	}
1561	},
1562	);
1563
1564	=item $player_object->goto_map ($path, $x, $y)	1971	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1565		1972
1566	=cut	1973	Moves the player to the given map-path and coordinates by first freezing
		1974	her, loading and preparing them map, calling the provided $check callback
		1975	that has to return the map if sucecssful, and then unfreezes the player on
		1976	the new (success) or old (failed) map position.
1567		1977
		1978	=cut
		1979
		1980	our $GOTOGEN;
		1981
1568	sub cf::object::player::goto_map {	1982	sub cf::object::player::goto {
1569	my ($self, $path, $x, $y) = @_;	1983	my ($self, $path, $x, $y, $check) = @_;
		1984
		1985	# do generation counting so two concurrent goto's will be executed in-order
		1986	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1570		1987
1571	$self->enter_link;	1988	$self->enter_link;
1572		1989
1573	(cf::async {	1990	(async {
1574	$path = new cf::path $path;	1991	my $map = eval {
1575
1576	my $map = cf::map::find_map $path->as_string;	1992	my $map = cf::map::find $path;
		1993
		1994	if ($map) {
1577	$map = $map->customise_for ($self) if $map;	1995	$map = $map->customise_for ($self);
1578		1996	$map = $check->($map) if $check && $map;
1579	# warn "entering ", $map->path, " at ($x, $y)\n"	1997	} else {
1580	# if $map;
1581
1582	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	1998	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		1999	}
1583		2000
		2001	$map
		2002	};
		2003
		2004	if ($@) {
		2005	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2006	LOG llevError | logBacktrace, Carp::longmess $@;
		2007	}
		2008
		2009	if ($gen == $self->{_goto_generation}) {
		2010	delete $self->{_goto_generation};
1584	$self->leave_link ($map, $x, $y);	2011	$self->leave_link ($map, $x, $y);
		2012	}
1585	})->prio (1);	2013	})->prio (1);
1586	}	2014	}
1587		2015
1588	=item $player_object->enter_exit ($exit_object)	2016	=item $player_object->enter_exit ($exit_object)
1589		2017
…		…
1591		2019
1592	sub parse_random_map_params {	2020	sub parse_random_map_params {
1593	my ($spec) = @_;	2021	my ($spec) = @_;
1594		2022
1595	my $rmp = { # defaults	2023	my $rmp = { # defaults
1596	xsize => 10,	2024	xsize => (cf::rndm 15, 40),
1597	ysize => 10,	2025	ysize => (cf::rndm 15, 40),
		2026	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2027	#layout => string,
1598	};	2028	};
1599		2029
1600	for (split /\n/, $spec) {	2030	for (split /\n/, $spec) {
1601	my ($k, $v) = split /\s+/, $_, 2;	2031	my ($k, $v) = split /\s+/, $_, 2;
1602		2032
…		…
1606	$rmp	2036	$rmp
1607	}	2037	}
1608		2038
1609	sub prepare_random_map {	2039	sub prepare_random_map {
1610	my ($exit) = @_;	2040	my ($exit) = @_;
		2041
		2042	my $guard = cf::lock_acquire "exit_prepare:$exit";
1611		2043
1612	# all this does is basically replace the /! path by	2044	# all this does is basically replace the /! path by
1613	# a new random map path (?random/...) with a seed	2045	# a new random map path (?random/...) with a seed
1614	# that depends on the exit object	2046	# that depends on the exit object
1615		2047
1616	my $rmp = parse_random_map_params $exit->msg;	2048	my $rmp = parse_random_map_params $exit->msg;
1617		2049
1618	if ($exit->map) {	2050	if ($exit->map) {
1619	$rmp->{region} = $exit->map->region_name;	2051	$rmp->{region} = $exit->region->name;
1620	$rmp->{origin_map} = $exit->map->path;	2052	$rmp->{origin_map} = $exit->map->path;
1621	$rmp->{origin_x} = $exit->x;	2053	$rmp->{origin_x} = $exit->x;
1622	$rmp->{origin_y} = $exit->y;	2054	$rmp->{origin_y} = $exit->y;
1623	}	2055	}
1624		2056
1625	$rmp->{random_seed} ||= $exit->random_seed;	2057	$rmp->{random_seed} ||= $exit->random_seed;
1626		2058
1627	my $data = cf::to_json $rmp;	2059	my $data = cf::to_json $rmp;
1628	my $md5 = Digest::MD5::md5_hex $data;	2060	my $md5 = Digest::MD5::md5_hex $data;
		2061	my $meta = "$RANDOMDIR/$md5.meta";
1629		2062
1630	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2063	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1631	aio_write $fh, 0, (length $data), $data, 0;	2064	aio_write $fh, 0, (length $data), $data, 0;
		2065	undef $fh;
		2066	aio_rename "$meta~", $meta;
1632		2067
1633	$exit->slaying ("?random/$md5");	2068	$exit->slaying ("?random/$md5");
1634	$exit->msg (undef);	2069	$exit->msg (undef);
1635	}	2070	}
1636	}	2071	}
…		…
1638	sub cf::object::player::enter_exit {	2073	sub cf::object::player::enter_exit {
1639	my ($self, $exit) = @_;	2074	my ($self, $exit) = @_;
1640		2075
1641	return unless $self->type == cf::PLAYER;	2076	return unless $self->type == cf::PLAYER;
1642		2077
		2078	if ($exit->slaying eq "/!") {
		2079	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2080	# the problem is that $exit might not survive long enough
		2081	# so it needs to be done right now, right here
		2082	cf::sync_job { prepare_random_map $exit };
		2083	}
		2084
		2085	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2086	my $hp = $exit->stats->hp;
		2087	my $sp = $exit->stats->sp;
		2088
1643	$self->enter_link;	2089	$self->enter_link;
1644		2090
1645	(cf::async {	2091	(async {
		2092	$self->deactivate_recursive; # just to be sure
1646	unless (eval {	2093	unless (eval {
1647	prepare_random_map $exit	2094	$self->goto ($slaying, $hp, $sp);
1648	if $exit->slaying eq "/!";
1649
1650	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1651	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
1652		2095
1653	1;	2096	1;
1654	}) {	2097	}) {
1655	$self->message ("Something went wrong deep within the crossfire server. "	2098	$self->message ("Something went wrong deep within the crossfire server. "
1656	. "I'll try to bring you back to the map you were before. "	2099	. "I'll try to bring you back to the map you were before. "
1657	. "Please report this to the dungeon master",	2100	. "Please report this to the dungeon master!",
1658	cf::NDI_UNIQUE | cf::NDI_RED);	2101	cf::NDI_UNIQUE | cf::NDI_RED);
1659		2102
1660	warn "ERROR in enter_exit: $@";	2103	warn "ERROR in enter_exit: $@";
1661	$self->leave_link;	2104	$self->leave_link;
1662	}	2105	}
1663	})->prio (1);	2106	})->prio (1);
…		…
1676		2119
1677	sub cf::client::send_drawinfo {	2120	sub cf::client::send_drawinfo {
1678	my ($self, $text, $flags) = @_;	2121	my ($self, $text, $flags) = @_;
1679		2122
1680	utf8::encode $text;	2123	utf8::encode $text;
1681	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2124	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1682	}	2125	}
1683		2126
		2127	=item $client->ext_event ($type, %msg)
		2128
		2129	Sends an exti event to the client.
		2130
		2131	=cut
		2132
		2133	sub cf::client::ext_event($$%) {
		2134	my ($self, $type, %msg) = @_;
		2135
		2136	$msg{msgtype} = "event_$type";
		2137	$self->send_packet ("ext " . cf::to_json \%msg);
		2138	}
1684		2139
1685	=item $success = $client->query ($flags, "text", \&cb)	2140	=item $success = $client->query ($flags, "text", \&cb)
1686		2141
1687	Queues a query to the client, calling the given callback with	2142	Queues a query to the client, calling the given callback with
1688	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2143	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
…		…
1717	# get handled first	2172	# get handled first
1718	my $queue = delete $ns->{query_queue}	2173	my $queue = delete $ns->{query_queue}
1719	or return; # be conservative, not sure how that can happen, but we saw a crash here	2174	or return; # be conservative, not sure how that can happen, but we saw a crash here
1720		2175
1721	(shift @$queue)->[1]->($msg);	2176	(shift @$queue)->[1]->($msg);
		2177	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1722		2178
1723	push @{ $ns->{query_queue} }, @$queue;	2179	push @{ $ns->{query_queue} }, @$queue;
1724		2180
1725	if (@{ $ns->{query_queue} } == @$queue) {	2181	if (@{ $ns->{query_queue} } == @$queue) {
1726	if (@$queue) {	2182	if (@$queue) {
…		…
1730	}	2186	}
1731	}	2187	}
1732	},	2188	},
1733	);	2189	);
1734		2190
1735	=item $client->coro (\&cb)	2191	=item $client->async (\&cb)
1736		2192
1737	Create a new coroutine, running the specified callback. The coroutine will	2193	Create a new coroutine, running the specified callback. The coroutine will
1738	be automatically cancelled when the client gets destroyed (e.g. on logout,	2194	be automatically cancelled when the client gets destroyed (e.g. on logout,
1739	or loss of connection).	2195	or loss of connection).
1740		2196
1741	=cut	2197	=cut
1742		2198
1743	sub cf::client::coro {	2199	sub cf::client::async {
1744	my ($self, $cb) = @_;	2200	my ($self, $cb) = @_;
1745		2201
1746	my $coro = &cf::async ($cb);	2202	my $coro = &Coro::async ($cb);
1747		2203
1748	$coro->on_destroy (sub {	2204	$coro->on_destroy (sub {
1749	delete $self->{_coro}{$coro+0};	2205	delete $self->{_coro}{$coro+0};
1750	});	2206	});
1751		2207
…		…
1784		2240
1785	# here we export the classes and methods available to script code	2241	# here we export the classes and methods available to script code
1786		2242
1787	=pod	2243	=pod
1788		2244
1789	The following fucntions and emthods are available within a safe environment:	2245	The following functions and methods are available within a safe environment:
1790		2246
1791	cf::object contr pay_amount pay_player map	2247	cf::object contr pay_amount pay_player map
1792	cf::object::player player	2248	cf::object::player player
1793	cf::player peaceful	2249	cf::player peaceful
1794	cf::map trigger	2250	cf::map trigger
…		…
1879	#############################################################################	2335	#############################################################################
1880		2336
1881	=head2 EXTENSION DATABASE SUPPORT	2337	=head2 EXTENSION DATABASE SUPPORT
1882		2338
1883	Crossfire maintains a very simple database for extension use. It can	2339	Crossfire maintains a very simple database for extension use. It can
1884	currently store anything that can be serialised using Storable, which	2340	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
1885	excludes objects.	2341	convert to/from binary).
1886		2342
1887	The parameter C<$family> should best start with the name of the extension	2343	The parameter C<$family> should best start with the name of the extension
1888	using it, it should be unique.	2344	using it, it should be unique.
1889		2345
1890	=over 4	2346	=over 4
1891		2347
1892	=item $hashref = cf::db_get $family
1893
1894	Return a hashref for use by the extension C<$family>, which can be
1895	modified. After modifications, you have to call C<cf::db_dirty> or
1896	C<cf::db_sync>.
1897
1898	=item $value = cf::db_get $family => $key	2348	=item $value = cf::db_get $family => $key
1899		2349
1900	Returns a single value from the database	2350	Returns a single value from the database.
1901
1902	=item cf::db_put $family => $hashref
1903
1904	Stores the given family hashref into the database. Updates are delayed, if
1905	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1906		2351
1907	=item cf::db_put $family => $key => $value	2352	=item cf::db_put $family => $key => $value
1908		2353
1909	Stores the given C<$value> in the family hash. Updates are delayed, if you	2354	Stores the given C<$value> in the family.
1910	want the data to be synced to disk immediately, use C<cf::db_sync>.
1911
1912	=item cf::db_dirty
1913
1914	Marks the database as dirty, to be updated at a later time.
1915
1916	=item cf::db_sync
1917
1918	Immediately write the database to disk I<if it is dirty>.
1919		2355
1920	=cut	2356	=cut
1921		2357
1922	our $DB;	2358	our $DB;
1923		2359
1924	{	2360	sub db_init {
1925	my $path = cf::localdir . "/database.pst";	2361	unless ($DB) {
		2362	$DB = BDB::db_create $DB_ENV;
1926		2363
1927	sub db_load() {	2364	cf::sync_job {
1928	$DB = stat $path ? Storable::retrieve $path : { };	2365	eval {
1929	}	2366	$DB->set_flags (BDB::CHKSUM);
1930		2367
1931	my $pid;	2368	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
1932		2369	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
1933	sub db_save() {	2370	cf::cleanup "db_open(db): $!" if $!;
1934	waitpid $pid, 0 if $pid;	2371	};
1935	if (0 == ($pid = fork)) {	2372	cf::cleanup "db_open(db): $@" if $@;
1936	$DB->{_meta}{version} = 1;
1937	Storable::nstore $DB, "$path~";
1938	rename "$path~", $path;
1939	cf::_exit 0 if defined $pid;
1940	}	2373	};
1941	}
1942
1943	my $dirty;
1944
1945	sub db_sync() {
1946	db_save if $dirty;
1947	undef $dirty;
1948	}
1949
1950	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1951	db_sync;
1952	});	2374	}
		2375	}
1953		2376
1954	sub db_dirty() {
1955	$dirty = 1;
1956	$idle->start;
1957	}
1958
1959	sub db_get($;$) {	2377	sub db_get($$) {
1960	@_ >= 2	2378	my $key = "$_[0]/$_[1]";
1961	? $DB->{$_[0]}{$_[1]}
1962	: ($DB->{$_[0]} ||= { })
1963	}
1964		2379
		2380	cf::sync_job {
		2381	BDB::db_get $DB, undef, $key, my $data;
		2382
		2383	$! ? ()
		2384	: $data
		2385	}
		2386	}
		2387
1965	sub db_put($$;$) {	2388	sub db_put($$$) {
1966	if (@_ >= 3) {	2389	BDB::dbreq_pri 4;
1967	$DB->{$_[0]}{$_[1]} = $_[2];	2390	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
1968	} else {	2391	}
1969	$DB->{$_[0]} = $_[1];
1970	}
1971	db_dirty;
1972	}
1973		2392
1974	cf::global->attach (	2393	=item cf::cache $id => [$paths...], $processversion => $process
1975	prio => 10000,	2394
1976	on_cleanup => sub {	2395	Generic caching function that returns the value of the resource $id,
1977	db_sync;	2396	caching and regenerating as required.
		2397
		2398	This function can block.
		2399
		2400	=cut
		2401
		2402	sub cache {
		2403	my ($id, $src, $processversion, $process) = @_;
		2404
		2405	my $meta =
		2406	join "\x00",
		2407	$processversion,
		2408	map {
		2409	aio_stat $_
		2410	and Carp::croak "$_: $!";
		2411
		2412	($_, (stat _)[7,9])
		2413	} @$src;
		2414
		2415	my $dbmeta = db_get cache => "$id/meta";
		2416	if ($dbmeta ne $meta) {
		2417	# changed, we may need to process
		2418
		2419	my @data;
		2420	my $md5;
		2421
		2422	for (0 .. $#$src) {
		2423	0 <= aio_load $src->[$_], $data[$_]
		2424	or Carp::croak "$src->[$_]: $!";
1978	},	2425	}
1979	);	2426
		2427	# if processing is expensive, check
		2428	# checksum first
		2429	if (1) {
		2430	$md5 =
		2431	join "\x00",
		2432	$processversion,
		2433	map {
		2434	Coro::cede;
		2435	($src->[$_], Digest::MD5::md5_hex $data[$_])
		2436	} 0.. $#$src;
		2437
		2438
		2439	my $dbmd5 = db_get cache => "$id/md5";
		2440	if ($dbmd5 eq $md5) {
		2441	db_put cache => "$id/meta", $meta;
		2442
		2443	return db_get cache => "$id/data";
		2444	}
		2445	}
		2446
		2447	my $t1 = Time::HiRes::time;
		2448	my $data = $process->(\@data);
		2449	my $t2 = Time::HiRes::time;
		2450
		2451	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		2452
		2453	db_put cache => "$id/data", $data;
		2454	db_put cache => "$id/md5" , $md5;
		2455	db_put cache => "$id/meta", $meta;
		2456
		2457	return $data;
		2458	}
		2459
		2460	db_get cache => "$id/data"
		2461	}
		2462
		2463	=item fork_call { }, $args
		2464
		2465	Executes the given code block with the given arguments in a seperate
		2466	process, returning the results. Everything must be serialisable with
		2467	Coro::Storable. May, of course, block. Note that the executed sub may
		2468	never block itself or use any form of Event handling.
		2469
		2470	=cut
		2471
		2472	sub fork_call(&@) {
		2473	my ($cb, @args) = @_;
		2474
		2475	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		2476	# or die "socketpair: $!";
		2477	pipe my $fh1, my $fh2
		2478	or die "pipe: $!";
		2479
		2480	if (my $pid = fork) {
		2481	close $fh2;
		2482
		2483	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
		2484	$res = Coro::Storable::thaw $res;
		2485
		2486	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		2487
		2488	die $$res unless "ARRAY" eq ref $res;
		2489
		2490	return wantarray ? @$res : $res->[-1];
		2491	} else {
		2492	reset_signals;
		2493	local $SIG{__WARN__};
		2494	local $SIG{__DIE__};
		2495	eval {
		2496	close $fh1;
		2497
		2498	my @res = eval { $cb->(@args) };
		2499	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
		2500	};
		2501
		2502	warn $@ if $@;
		2503	_exit 0;
		2504	}
1980	}	2505	}
1981		2506
1982	#############################################################################	2507	#############################################################################
1983	# the server's main()	2508	# the server's init and main functions
		2509
		2510	sub load_facedata($) {
		2511	my ($path) = @_;
		2512
		2513	warn "loading facedata from $path\n";
		2514
		2515	my $facedata;
		2516	0 < aio_load $path, $facedata
		2517	or die "$path: $!";
		2518
		2519	$facedata = Coro::Storable::thaw $facedata;
		2520
		2521	$facedata->{version} == 2
		2522	or cf::cleanup "$path: version mismatch, cannot proceed.";
		2523
		2524	{
		2525	my $faces = $facedata->{faceinfo};
		2526
		2527	while (my ($face, $info) = each %$faces) {
		2528	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		2529	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
		2530	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2531	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
		2532	Coro::cede;
		2533	}
		2534
		2535	while (my ($face, $info) = each %$faces) {
		2536	next unless $info->{smooth};
		2537	my $idx = cf::face::find $face
		2538	or next;
		2539	if (my $smooth = cf::face::find $info->{smooth}) {
		2540	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2541	} else {
		2542	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2543	}
		2544	Coro::cede;
		2545	}
		2546	}
		2547
		2548	{
		2549	my $anims = $facedata->{animinfo};
		2550
		2551	while (my ($anim, $info) = each %$anims) {
		2552	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2553	Coro::cede;
		2554	}
		2555
		2556	cf::anim::invalidate_all; # d'oh
		2557	}
		2558
		2559	1
		2560	}
		2561
		2562	sub reload_regions {
		2563	load_resource_file "$MAPDIR/regions"
		2564	or die "unable to load regions file\n";
		2565	}
		2566
		2567	sub reload_facedata {
		2568	load_facedata "$DATADIR/facedata"
		2569	or die "unable to load facedata\n";
		2570	}
		2571
		2572	sub reload_archetypes {
		2573	load_resource_file "$DATADIR/archetypes"
		2574	or die "unable to load archetypes\n";
		2575	}
		2576
		2577	sub reload_treasures {
		2578	load_resource_file "$DATADIR/treasures"
		2579	or die "unable to load treasurelists\n";
		2580	}
		2581
		2582	sub reload_resources {
		2583	warn "reloading resource files...\n";
		2584
		2585	reload_regions;
		2586	reload_facedata;
		2587	#reload_archetypes;#d#
		2588	reload_archetypes;
		2589	reload_treasures;
		2590
		2591	warn "finished reloading resource files\n";
		2592	}
		2593
		2594	sub init {
		2595	reload_resources;
		2596	}
1984		2597
1985	sub cfg_load {	2598	sub cfg_load {
1986	open my $fh, "<:utf8", cf::confdir . "/config"	2599	open my $fh, "<:utf8", "$CONFDIR/config"
1987	or return;	2600	or return;
1988		2601
1989	local $/;	2602	local $/;
1990	*CFG = YAML::Syck::Load <$fh>;	2603	*CFG = YAML::Syck::Load <$fh>;
		2604
		2605	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		2606
		2607	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2608	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2609
		2610	if (exists $CFG{mlockall}) {
		2611	eval {
		2612	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2613	and die "WARNING: m(un)lockall failed: $!\n";
		2614	};
		2615	warn $@ if $@;
		2616	}
1991	}	2617	}
1992		2618
1993	sub main {	2619	sub main {
1994	# we must not ever block the main coroutine	2620	# we must not ever block the main coroutine
1995	local $Coro::idle = sub {	2621	local $Coro::idle = sub {
1996	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	2622	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1997	(Coro::unblock_sub {	2623	(async {
1998	Event::one_event;	2624	Event::one_event;
1999	})->();	2625	})->prio (Coro::PRIO_MAX);
2000	};	2626	};
2001		2627
2002	cfg_load;	2628	cfg_load;
2003	db_load;	2629	db_init;
2004	load_extensions;	2630	load_extensions;
		2631
		2632	$TICK_WATCHER->start;
2005	Event::loop;	2633	Event::loop;
2006	}	2634	}
2007		2635
2008	#############################################################################	2636	#############################################################################
2009	# initialisation	2637	# initialisation and cleanup
2010		2638
		2639	# install some emergency cleanup handlers
		2640	BEGIN {
		2641	for my $signal (qw(INT HUP TERM)) {
		2642	Event->signal (
		2643	reentrant => 0,
		2644	data => WF_AUTOCANCEL,
		2645	signal => $signal,
		2646	prio => 0,
		2647	cb => sub {
		2648	cf::cleanup "SIG$signal";
		2649	},
		2650	);
		2651	}
		2652	}
		2653
		2654	sub emergency_save() {
		2655	my $freeze_guard = cf::freeze_mainloop;
		2656
		2657	warn "enter emergency perl save\n";
		2658
		2659	cf::sync_job {
		2660	# use a peculiar iteration method to avoid tripping on perl
		2661	# refcount bugs in for. also avoids problems with players
		2662	# and maps saved/destroyed asynchronously.
		2663	warn "begin emergency player save\n";
		2664	for my $login (keys %cf::PLAYER) {
		2665	my $pl = $cf::PLAYER{$login} or next;
		2666	$pl->valid or next;
		2667	$pl->save;
		2668	}
		2669	warn "end emergency player save\n";
		2670
		2671	warn "begin emergency map save\n";
		2672	for my $path (keys %cf::MAP) {
		2673	my $map = $cf::MAP{$path} or next;
		2674	$map->valid or next;
		2675	$map->save;
		2676	}
		2677	warn "end emergency map save\n";
		2678
		2679	warn "begin emergency database checkpoint\n";
		2680	BDB::db_env_txn_checkpoint $DB_ENV;
		2681	warn "end emergency database checkpoint\n";
		2682	};
		2683
		2684	warn "leave emergency perl save\n";
		2685	}
		2686
		2687	sub post_cleanup {
		2688	my ($make_core) = @_;
		2689
		2690	warn Carp::longmess "post_cleanup backtrace"
		2691	if $make_core;
		2692	}
		2693
2011	sub reload() {	2694	sub do_reload_perl() {
2012	# can/must only be called in main	2695	# can/must only be called in main
2013	if ($Coro::current != $Coro::main) {	2696	if ($Coro::current != $Coro::main) {
2014	warn "can only reload from main coroutine\n";	2697	warn "can only reload from main coroutine";
2015	return;	2698	return;
2016	}	2699	}
2017		2700
2018	warn "reloading...";	2701	warn "reloading...";
2019		2702
2020	local $FREEZE = 1;	2703	warn "entering sync_job";
		2704
		2705	cf::sync_job {
		2706	cf::write_runtime; # external watchdog should not bark
2021	cf::emergency_save;	2707	cf::emergency_save;
		2708	cf::write_runtime; # external watchdog should not bark
2022		2709
2023	eval {	2710	warn "syncing database to disk";
		2711	BDB::db_env_txn_checkpoint $DB_ENV;
		2712
2024	# if anything goes wrong in here, we should simply crash as we already saved	2713	# if anything goes wrong in here, we should simply crash as we already saved
2025		2714
2026	# cancel all watchers	2715	warn "cancelling all WF_AUTOCANCEL watchers";
2027	for (Event::all_watchers) {	2716	for (Event::all_watchers) {
2028	$_->cancel if $_->data & WF_AUTOCANCEL;	2717	$_->cancel if $_->data & WF_AUTOCANCEL;
2029	}	2718	}
2030		2719
		2720	warn "flushing outstanding aio requests";
		2721	for (;;) {
		2722	BDB::flush;
		2723	IO::AIO::flush;
		2724	Coro::cede;
		2725	last unless IO::AIO::nreqs || BDB::nreqs;
		2726	warn "iterate...";
		2727	}
		2728
		2729	++$RELOAD;
		2730
2031	# cancel all extension coros	2731	warn "cancelling all extension coros";
2032	$_->cancel for values %EXT_CORO;	2732	$_->cancel for values %EXT_CORO;
2033	%EXT_CORO = ();	2733	%EXT_CORO = ();
2034		2734
2035	# unload all extensions	2735	warn "removing commands";
2036	for (@exts) {	2736	%COMMAND = ();
		2737
		2738	warn "removing ext commands";
		2739	%EXTCMD = ();
		2740
		2741	warn "unloading/nuking all extensions";
		2742	for my $pkg (@EXTS) {
2037	warn "unloading <$_>";	2743	warn "... unloading $pkg";
2038	unload_extension $_;	2744
		2745	if (my $cb = $pkg->can ("unload")) {
		2746	eval {
		2747	$cb->($pkg);
		2748	1
		2749	} or warn "$pkg unloaded, but with errors: $@";
2039	}	2750	}
2040		2751
		2752	warn "... nuking $pkg";
		2753	Symbol::delete_package $pkg;
		2754	}
		2755
2041	# unload all modules loaded from $LIBDIR	2756	warn "unloading all perl modules loaded from $LIBDIR";
2042	while (my ($k, $v) = each %INC) {	2757	while (my ($k, $v) = each %INC) {
2043	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2758	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2044		2759
2045	warn "removing <$k>";	2760	warn "... unloading $k";
2046	delete $INC{$k};	2761	delete $INC{$k};
2047		2762
2048	$k =~ s/\.pm$//;	2763	$k =~ s/\.pm$//;
2049	$k =~ s/\//::/g;	2764	$k =~ s/\//::/g;
2050		2765
…		…
2053	}	2768	}
2054		2769
2055	Symbol::delete_package $k;	2770	Symbol::delete_package $k;
2056	}	2771	}
2057		2772
2058	# sync database to disk
2059	cf::db_sync;
2060	IO::AIO::flush;
2061
2062	# get rid of safe::, as good as possible	2773	warn "getting rid of safe::, as good as possible";
2063	Symbol::delete_package "safe::$_"	2774	Symbol::delete_package "safe::$_"
2064	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2775	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2065		2776
2066	# remove register_script_function callbacks
2067	# TODO
2068
2069	# unload cf.pm "a bit"	2777	warn "unloading cf.pm \"a bit\"";
2070	delete $INC{"cf.pm"};	2778	delete $INC{"cf.pm"};
		2779	delete $INC{"cf/pod.pm"};
2071		2780
2072	# don't, removes xs symbols, too,	2781	# don't, removes xs symbols, too,
2073	# and global variables created in xs	2782	# and global variables created in xs
2074	#Symbol::delete_package __PACKAGE__;	2783	#Symbol::delete_package __PACKAGE__;
2075		2784
2076	# reload cf.pm	2785	warn "unload completed, starting to reload now";
		2786
2077	warn "reloading cf.pm";	2787	warn "reloading cf.pm";
2078	require cf;	2788	require cf;
2079	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2789	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2080		2790
2081	# load config and database again	2791	warn "loading config and database again";
2082	cf::cfg_load;	2792	cf::cfg_load;
2083	cf::db_load;
2084		2793
2085	# load extensions
2086	warn "load extensions";	2794	warn "loading extensions";
2087	cf::load_extensions;	2795	cf::load_extensions;
2088		2796
2089	# reattach attachments to objects	2797	warn "reattaching attachments to objects/players";
2090	warn "reattach";	2798	_global_reattach; # objects, sockets
2091	_global_reattach;	2799	warn "reattaching attachments to maps";
2092	};	2800	reattach $_ for values %MAP;
		2801	warn "reattaching attachments to players";
		2802	reattach $_ for values %PLAYER;
2093		2803
2094	if ($@) {	2804	warn "leaving sync_job";
		2805
		2806	1
		2807	} or do {
2095	warn $@;	2808	warn $@;
2096	warn "error while reloading, exiting.";	2809	warn "error while reloading, exiting.";
2097	exit 1;	2810	exit 1;
2098	}	2811	};
2099		2812
2100	warn "reloaded successfully";	2813	warn "reloaded";
2101	};	2814	};
2102		2815
2103	#############################################################################	2816	our $RELOAD_WATCHER; # used only during reload
2104		2817
2105	unless ($LINK_MAP) {	2818	sub reload_perl() {
2106	$LINK_MAP = cf::map::new;	2819	# doing reload synchronously and two reloads happen back-to-back,
		2820	# coro crashes during coro_state_free->destroy here.
2107		2821
2108	$LINK_MAP->width (41);	2822	$RELOAD_WATCHER ||= Event->timer (
2109	$LINK_MAP->height (41);	2823	reentrant => 0,
2110	$LINK_MAP->alloc;
2111	$LINK_MAP->path ("{link}");
2112	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2113	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2114
2115	# dirty hack because... archetypes are not yet loaded
2116	Event->timer (
2117	after => 2,	2824	after => 0,
		2825	data => WF_AUTOCANCEL,
2118	cb => sub {	2826	cb => sub {
2119	$_[0]->w->cancel;	2827	do_reload_perl;
2120		2828	undef $RELOAD_WATCHER;
2121	# provide some exits "home"
2122	my $exit = cf::object::new "exit";
2123
2124	$exit->slaying ($EMERGENCY_POSITION->[0]);
2125	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2126	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2127
2128	$LINK_MAP->insert ($exit->clone, 19, 19);
2129	$LINK_MAP->insert ($exit->clone, 19, 20);
2130	$LINK_MAP->insert ($exit->clone, 19, 21);
2131	$LINK_MAP->insert ($exit->clone, 20, 19);
2132	$LINK_MAP->insert ($exit->clone, 20, 21);
2133	$LINK_MAP->insert ($exit->clone, 21, 19);
2134	$LINK_MAP->insert ($exit->clone, 21, 20);
2135	$LINK_MAP->insert ($exit->clone, 21, 21);
2136
2137	$exit->destroy;
2138	});	2829	},
2139		2830	);
2140	$LINK_MAP->{deny_save} = 1;
2141	$LINK_MAP->{deny_reset} = 1;
2142
2143	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2144	}	2831	}
2145
2146	register "<global>", __PACKAGE__;
2147		2832
2148	register_command "reload" => sub {	2833	register_command "reload" => sub {
2149	my ($who, $arg) = @_;	2834	my ($who, $arg) = @_;
2150		2835
2151	if ($who->flag (FLAG_WIZ)) {	2836	if ($who->flag (FLAG_WIZ)) {
2152	$who->message ("start of reload.");
2153	reload;
2154	$who->message ("end of reload.");	2837	$who->message ("reloading server.");
		2838	async { reload_perl };
2155	}	2839	}
2156	};	2840	};
2157		2841
2158	unshift @INC, $LIBDIR;	2842	unshift @INC, $LIBDIR;
2159		2843
		2844	my $bug_warning = 0;
		2845
		2846	our @WAIT_FOR_TICK;
		2847	our @WAIT_FOR_TICK_BEGIN;
		2848
		2849	sub wait_for_tick {
		2850	return unless $TICK_WATCHER->is_active;
		2851	return if $Coro::current == $Coro::main;
		2852
		2853	my $signal = new Coro::Signal;
		2854	push @WAIT_FOR_TICK, $signal;
		2855	$signal->wait;
		2856	}
		2857
		2858	sub wait_for_tick_begin {
		2859	return unless $TICK_WATCHER->is_active;
		2860	return if $Coro::current == $Coro::main;
		2861
		2862	my $signal = new Coro::Signal;
		2863	push @WAIT_FOR_TICK_BEGIN, $signal;
		2864	$signal->wait;
		2865	}
		2866
		2867	my $min = 1e6;#d#
		2868	my $avg = 10;
2160	$TICK_WATCHER = Event->timer (	2869	$TICK_WATCHER = Event->timer (
2161	reentrant => 0,	2870	reentrant => 0,
		2871	parked => 1,
2162	prio => 0,	2872	prio => 0,
2163	at => $NEXT_TICK || $TICK,	2873	at => $NEXT_TICK || $TICK,
2164	data => WF_AUTOCANCEL,	2874	data => WF_AUTOCANCEL,
2165	cb => sub {	2875	cb => sub {
2166	unless ($FREEZE) {	2876	if ($Coro::current != $Coro::main) {
		2877	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2878	unless ++$bug_warning > 10;
		2879	return;
		2880	}
		2881
		2882	$NOW = $tick_start = Event::time;
		2883
2167	cf::server_tick; # one server iteration	2884	cf::server_tick; # one server iteration
2168	$RUNTIME += $TICK;	2885
		2886	0 && sync_job {#d#
		2887	for(1..10) {
		2888	my $t = Event::time;
		2889	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		2890	or die;
		2891
		2892	$map->width (50);
		2893	$map->height (50);
		2894	$map->alloc;
		2895	$map->_load_objects ("/tmp/x.map", 1);
		2896	my $t = Event::time - $t;
		2897
		2898	#next unless $t < 0.0013;#d#
		2899	if ($t < $min) {
		2900	$min = $t;
		2901	}
		2902	$avg = $avg * 0.99 + $t * 0.01;
		2903	}
		2904	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		2905	exit 0;
		2906	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
2169	}	2907	};
2170		2908
		2909	$RUNTIME += $TICK;
2171	$NEXT_TICK += $TICK;	2910	$NEXT_TICK += $TICK;
2172		2911
		2912	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		2913	$NEXT_RUNTIME_WRITE = $NOW + 10;
		2914	Coro::async_pool {
		2915	write_runtime
		2916	or warn "ERROR: unable to write runtime file: $!";
		2917	};
		2918	}
		2919
		2920	# my $AFTER = Event::time;
		2921	# warn $AFTER - $NOW;#d#
		2922
		2923	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		2924	$sig->send;
		2925	}
		2926	while (my $sig = shift @WAIT_FOR_TICK) {
		2927	$sig->send;
		2928	}
		2929
		2930	$NOW = Event::time;
		2931
2173	# if we are delayed by four ticks or more, skip them all	2932	# if we are delayed by four ticks or more, skip them all
2174	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2933	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2175		2934
2176	$TICK_WATCHER->at ($NEXT_TICK);	2935	$TICK_WATCHER->at ($NEXT_TICK);
2177	$TICK_WATCHER->start;	2936	$TICK_WATCHER->start;
		2937
		2938	$LOAD = ($NOW - $tick_start) / $TICK;
		2939	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		2940
		2941	_post_tick;
		2942
		2943
2178	},	2944	},
2179	);	2945	);
2180		2946
		2947	{
2181	IO::AIO::max_poll_time $TICK * 0.2;	2948	BDB::max_poll_time $TICK * 0.1;
2182		2949	$BDB_POLL_WATCHER = Event->io (
2183	Event->io (	2950	reentrant => 0,
2184	fd => IO::AIO::poll_fileno,	2951	fd => BDB::poll_fileno,
2185	poll => 'r',	2952	poll => 'r',
2186	prio => 5,	2953	prio => 0,
2187	data => WF_AUTOCANCEL,
2188	cb => \&IO::AIO::poll_cb,
2189	);
2190
2191	Event->timer (
2192	data => WF_AUTOCANCEL,	2954	data => WF_AUTOCANCEL,
2193	after => 0,	2955	cb => \&BDB::poll_cb,
2194	interval => 10,	2956	);
2195	cb => sub {	2957	BDB::min_parallel 8;
2196	(Coro::unblock_sub {	2958
2197	write_runtime	2959	BDB::set_sync_prepare {
2198	or warn "ERROR: unable to write runtime file: $!";	2960	my $status;
		2961	my $current = $Coro::current;
		2962	(
		2963	sub {
		2964	$status = $!;
		2965	$current->ready; undef $current;
		2966	},
		2967	sub {
		2968	Coro::schedule while defined $current;
		2969	$! = $status;
		2970	},
		2971	)
		2972	};
		2973
		2974	unless ($DB_ENV) {
		2975	$DB_ENV = BDB::db_env_create;
		2976
		2977	cf::sync_job {
		2978	eval {
		2979	BDB::db_env_open
		2980	$DB_ENV,
		2981	$BDBDIR,
		2982	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		2983	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		2984	0666;
		2985
		2986	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		2987
		2988	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		2989	$DB_ENV->set_lk_detect;
		2990	};
		2991
		2992	cf::cleanup "db_env_open(db): $@" if $@;
2199	})->();	2993	};
2200	},	2994	}
2201	);	2995	}
		2996
		2997	{
		2998	IO::AIO::min_parallel 8;
		2999
		3000	undef $Coro::AIO::WATCHER;
		3001	IO::AIO::max_poll_time $TICK * 0.1;
		3002	$AIO_POLL_WATCHER = Event->io (
		3003	reentrant => 0,
		3004	data => WF_AUTOCANCEL,
		3005	fd => IO::AIO::poll_fileno,
		3006	poll => 'r',
		3007	prio => 6,
		3008	cb => \&IO::AIO::poll_cb,
		3009	);
		3010	}
		3011
		3012	my $_log_backtrace;
		3013
		3014	sub _log_backtrace {
		3015	my ($msg, @addr) = @_;
		3016
		3017	$msg =~ s/\n//;
		3018
		3019	# limit the # of concurrent backtraces
		3020	if ($_log_backtrace < 2) {
		3021	++$_log_backtrace;
		3022	async {
		3023	my @bt = fork_call {
		3024	@addr = map { sprintf "%x", $_ } @addr;
		3025	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3026	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3027	or die "addr2line: $!";
		3028
		3029	my @funcs;
		3030	my @res = <$fh>;
		3031	chomp for @res;
		3032	while (@res) {
		3033	my ($func, $line) = splice @res, 0, 2, ();
		3034	push @funcs, "[$func] $line";
		3035	}
		3036
		3037	@funcs
		3038	};
		3039
		3040	LOG llevInfo, "[ABT] $msg\n";
		3041	LOG llevInfo, "[ABT] $_\n" for @bt;
		3042	--$_log_backtrace;
		3043	};
		3044	} else {
		3045	LOG llevInfo, "[ABT] $msg\n";
		3046	LOG llevInfo, "[ABT] [suppressed]\n";
		3047	}
		3048	}
		3049
		3050	# load additional modules
		3051	use cf::pod;
2202		3052
2203	END { cf::emergency_save }	3053	END { cf::emergency_save }
2204		3054
2205	1	3055	1
2206		3056

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