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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.138 by root, Fri Jan 5 17:07:17 2007 UTC vs.
Revision 1.277 by root, Sun Jun 10 04:24:50 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 $RANDOM_MAPS = cf::localdir . "/random";	91
55	our %EXT_CORO;	92	# used to convert map paths into valid unix filenames by replacing / by ∕
		93	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		94
		95	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		96	our $LOADAVG; # same thing, but with alpha-smoothing
		97	our $tick_start; # for load detecting purposes
56		98
57	binmode STDOUT;	99	binmode STDOUT;
58	binmode STDERR;	100	binmode STDERR;
59		101
60	# read virtual server time, if available	102	# read virtual server time, if available
61	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	103	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
62	open my $fh, "<", cf::localdir . "/runtime"	104	open my $fh, "<", "$LOCALDIR/runtime"
63	or die "unable to read runtime file: $!";	105	or die "unable to read runtime file: $!";
64	$RUNTIME = <$fh> + 0.;	106	$RUNTIME = <$fh> + 0.;
65	}	107	}
66		108
67	mkdir cf::localdir;	109	mkdir $_
68	mkdir cf::localdir . "/" . cf::playerdir;	110	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
69	mkdir cf::localdir . "/" . cf::tmpdir;
70	mkdir cf::localdir . "/" . cf::uniquedir;
71	mkdir $RANDOM_MAPS;
72		111
73	# a special map that is always available
74	our $LINK_MAP;
75	our $EMERGENCY_POSITION;	112	our $EMERGENCY_POSITION;
		113
		114	sub cf::map::normalise;
76		115
77	#############################################################################	116	#############################################################################
78		117
79	=head2 GLOBAL VARIABLES	118	=head2 GLOBAL VARIABLES
80		119
…		…
87	=item $cf::RUNTIME	126	=item $cf::RUNTIME
88		127
89	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
90	every server tick.	129	every server tick.
91		130
92	=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
93		134
94	The perl library directory, where extensions and cf-specific modules can	135	Various directories - "/etc", read-only install directory, perl-library
95	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.
96		139
97	=item $cf::NOW	140	=item $cf::NOW
98		141
99	The time of the last (current) server tick.	142	The time of the last (current) server tick.
100		143
101	=item $cf::TICK	144	=item $cf::TICK
102		145
103	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.
104		157
105	=item %cf::CFG	158	=item %cf::CFG
106		159
107	Configuration for the server, loaded from C</etc/crossfire/config>, or	160	Configuration for the server, loaded from C</etc/crossfire/config>, or
108	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.
109		168
110	=back	169	=back
111		170
112	=cut	171	=cut
113		172
114	BEGIN {	173	BEGIN {
115	*CORE::GLOBAL::warn = sub {	174	*CORE::GLOBAL::warn = sub {
116	my $msg = join "", @_;	175	my $msg = join "", @_;
117	utf8::encode $msg;
118		176
119	$msg .= "\n"	177	$msg .= "\n"
120	unless $msg =~ /\n$/;	178	unless $msg =~ /\n$/;
121		179
		180	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		181
		182	utf8::encode $msg;
122	LOG llevError, "cfperl: $msg";	183	LOG llevError, $msg;
123	};	184	};
124	}	185	}
125		186
126	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	187	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
127	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	188	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
128	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	189	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
129	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	190	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
130	@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';
131	@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)
132		194
133	# 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
134	# within the Safe compartment.	196	# within the Safe compartment.
135	for my $pkg (qw(	197	for my $pkg (qw(
136	cf::global cf::attachable	198	cf::global cf::attachable
…		…
145		207
146	$Event::DIED = sub {	208	$Event::DIED = sub {
147	warn "error in event callback: @_";	209	warn "error in event callback: @_";
148	};	210	};
149		211
150	my %ext_pkg;
151	my @exts;
152	my @hook;
153
154	=head2 UTILITY FUNCTIONS	212	=head2 UTILITY FUNCTIONS
155		213
156	=over 4	214	=over 4
157		215
158	=cut	216	=item dumpval $ref
159		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
160	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
161		240
162	=item $ref = cf::from_json $json	241	=item $ref = cf::from_json $json
163		242
164	Converts a JSON string into the corresponding perl data structure.	243	Converts a JSON string into the corresponding perl data structure.
165		244
166	=cut
167
168	sub from_json($) {
169	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
170	JSON::Syck::Load $_[0]
171	}
172
173	=item $json = cf::to_json $ref	245	=item $json = cf::to_json $ref
174		246
175	Converts a perl data structure into its JSON representation.	247	Converts a perl data structure into its JSON representation.
176
177	=cut
178
179	sub to_json($) {
180	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
181	JSON::Syck::Dump $_[0]
182	}
183		248
184	=item cf::lock_wait $string	249	=item cf::lock_wait $string
185		250
186	Wait until the given lock is available. See cf::lock_acquire.	251	Wait until the given lock is available. See cf::lock_acquire.
187		252
…		…
193	returned.	258	returned.
194		259
195	Lock names should begin with a unique identifier (for example, cf::map::find	260	Lock names should begin with a unique identifier (for example, cf::map::find
196	uses map_find and cf::map::load uses map_load).	261	uses map_find and cf::map::load uses map_load).
197		262
		263	=item $locked = cf::lock_active $string
		264
		265	Return true if the lock is currently active, i.e. somebody has locked it.
		266
198	=cut	267	=cut
199		268
200	our %LOCK;	269	our %LOCK;
201		270
202	sub lock_wait($) {	271	sub lock_wait($) {
…		…
221	# wake up all waiters, to be on the safe side	290	# wake up all waiters, to be on the safe side
222	$_->ready for @{ delete $LOCK{$key} };	291	$_->ready for @{ delete $LOCK{$key} };
223	}	292	}
224	}	293	}
225		294
		295	sub lock_active($) {
		296	my ($key) = @_;
		297
		298	! ! $LOCK{$key}
		299	}
		300
226	sub freeze_mainloop {	301	sub freeze_mainloop {
227	return unless $TICK_WATCHER->is_active;	302	return unless $TICK_WATCHER->is_active;
228		303
229	my $guard = Coro::guard { $TICK_WATCHER->start };	304	my $guard = Coro::guard {
		305	$TICK_WATCHER->start;
		306	};
230	$TICK_WATCHER->stop;	307	$TICK_WATCHER->stop;
231	$guard	308	$guard
232	}	309	}
		310
		311	=item cf::async { BLOCK }
		312
		313	Currently the same as Coro::async_pool, meaning you cannot use
		314	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		315	thing you are allowed to do is call C<prio> on it.
		316
		317	=cut
		318
		319	BEGIN { *async = \&Coro::async_pool }
233		320
234	=item cf::sync_job { BLOCK }	321	=item cf::sync_job { BLOCK }
235		322
236	The design of crossfire+ requires that the main coro ($Coro::main) is	323	The design of crossfire+ requires that the main coro ($Coro::main) is
237	always able to handle events or runnable, as crossfire+ is only partly	324	always able to handle events or runnable, as crossfire+ is only partly
…		…
246		333
247	sub sync_job(&) {	334	sub sync_job(&) {
248	my ($job) = @_;	335	my ($job) = @_;
249		336
250	if ($Coro::current == $Coro::main) {	337	if ($Coro::current == $Coro::main) {
		338	my $time = Event::time;
		339
251	# this is the main coro, too bad, we have to block	340	# this is the main coro, too bad, we have to block
252	# till the operation succeeds, freezing the server :/	341	# till the operation succeeds, freezing the server :/
253		342
254	# TODO: use suspend/resume instead	343	# TODO: use suspend/resume instead
255	# (but this is cancel-safe)	344	# (but this is cancel-safe)
256	my $freeze_guard = freeze_mainloop;	345	my $freeze_guard = freeze_mainloop;
257		346
258	my $busy = 1;	347	my $busy = 1;
259	my @res;	348	my @res;
260		349
261	(Coro::async_pool {	350	(async {
262	@res = eval { $job->() };	351	@res = eval { $job->() };
263	warn $@ if $@;	352	warn $@ if $@;
264	undef $busy;	353	undef $busy;
265	})->prio (Coro::PRIO_MAX);	354	})->prio (Coro::PRIO_MAX);
266		355
267	while ($busy) {	356	while ($busy) {
268	Coro::cede_notself;	357	Coro::cede or Event::one_event;
269	Event::one_event unless Coro::nready;
270	}	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
271		366
272	wantarray ? @res : $res[0]	367	wantarray ? @res : $res[0]
273	} else {	368	} else {
274	# we are in another coroutine, how wonderful, everything just works	369	# we are in another coroutine, how wonderful, everything just works
275		370
276	$job->()	371	$job->()
277	}	372	}
278	}	373	}
279		374
280	=item $coro = cf::coro { BLOCK }	375	=item $coro = cf::async_ext { BLOCK }
281		376
282	Creates (and readies) and returns a new coro. This coro is automcatially	377	Like async, but this coro is automatically being canceled when the
283	being canceled when the extension calling this is being unloaded.	378	extension calling this is being unloaded.
284		379
285	=cut	380	=cut
286		381
287	sub coro(&) {	382	sub async_ext(&) {
288	my $cb = shift;	383	my $cb = shift;
289		384
290	my $coro = &Coro::async_pool ($cb);	385	my $coro = &Coro::async ($cb);
291		386
292	$coro->on_destroy (sub {	387	$coro->on_destroy (sub {
293	delete $EXT_CORO{$coro+0};	388	delete $EXT_CORO{$coro+0};
294	});	389	});
295	$EXT_CORO{$coro+0} = $coro;	390	$EXT_CORO{$coro+0} = $coro;
296		391
297	$coro	392	$coro
298	}	393	}
299		394
300	sub write_runtime {	395	sub write_runtime {
301	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";
302		404
303	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	405	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
304	or return;	406	or return;
305		407
		408	my $value = $cf::RUNTIME + 90 + 10;
306	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
307	(aio_write $fh, 0, (length $value), $value, 0) <= 0	412	(aio_write $fh, 0, (length $value), $value, 0) <= 0
308	and return;	413	and return;
309		414
		415	# always fsync - this file is important
310	aio_fsync $fh	416	aio_fsync $fh
311	and return;	417	and return;
312		418
		419	# touch it again to show we are up-to-date
		420	aio_utime $fh, undef, undef;
		421
313	close $fh	422	close $fh
314	or return;	423	or return;
315		424
316	aio_rename "$runtime~", $runtime	425	aio_rename "$runtime~", $runtime
317	and return;	426	and return;
318		427
		428	warn "runtime file written.\n";
		429
319	1	430	1
320	}	431	}
321		432
		433	=item cf::datalog type => key => value, ...
		434
		435	Log a datalog packet of the given type with the given key-value pairs.
		436
		437	=cut
		438
		439	sub datalog($@) {
		440	my ($type, %kv) = @_;
		441	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
		442	}
		443
322	=back	444	=back
323		445
324	=cut	446	=cut
325
326	#############################################################################
327
328	package cf::path;
329
330	sub new {
331	my ($class, $path, $base) = @_;
332
333	$path = $path->as_string if ref $path;
334
335	my $self = bless { }, $class;
336
337	# {... are special paths that are not touched
338	# ?xxx/... are special absolute paths
339	# ?random/... random maps
340	# /! non-realised random map exit
341	# /... normal maps
342	# ~/... per-player maps without a specific player (DO NOT USE)
343	# ~user/... per-player map of a specific user
344
345	if ($path =~ /^{/) {
346	# fine as it is
347	} elsif ($path =~ s{^\?random/}{}) {
348	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
349	$self->{random} = cf::from_json $data;
350	} else {
351	if ($path =~ s{^~([^/]+)?}{}) {
352	$self->{user_rel} = 1;
353
354	if (defined $1) {
355	$self->{user} = $1;
356	} elsif ($base =~ m{^~([^/]+)/}) {
357	$self->{user} = $1;
358	} else {
359	warn "cannot resolve user-relative path without user <$path,$base>\n";
360	}
361	} elsif ($path =~ /^\//) {
362	# already absolute
363	} else {
364	$base =~ s{[^/]+/?$}{};
365	return $class->new ("$base/$path");
366	}
367
368	for ($path) {
369	redo if s{/\.?/}{/};
370	redo if s{/[^/]+/\.\./}{/};
371	}
372	}
373
374	$self->{path} = $path;
375
376	$self
377	}
378
379	# the name / primary key / in-game path
380	sub as_string {
381	my ($self) = @_;
382
383	$self->{user_rel} ? "~$self->{user}$self->{path}"
384	: $self->{random} ? "?random/$self->{path}"
385	: $self->{path}
386	}
387
388	# the displayed name, this is a one way mapping
389	sub visible_name {
390	my ($self) = @_;
391
392	# if (my $rmp = $self->{random}) {
393	# # todo: be more intelligent about this
394	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
395	# } else {
396	$self->as_string
397	# }
398	}
399
400	# escape the /'s in the path
401	sub _escaped_path {
402	# ∕ is U+2215
403	(my $path = $_[0]{path}) =~ s/\//∕/g;
404	$path
405	}
406
407	# the original (read-only) location
408	sub load_path {
409	my ($self) = @_;
410
411	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
412	}
413
414	# the temporary/swap location
415	sub save_path {
416	my ($self) = @_;
417
418	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
419	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
420	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
421	}
422
423	# the unique path, might be eq to save_path
424	sub uniq_path {
425	my ($self) = @_;
426
427	$self->{user_rel} || $self->{random}
428	? undef
429	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
430	}
431
432	# return random map parameters, or undef
433	sub random_map_params {
434	my ($self) = @_;
435
436	$self->{random}
437	}
438
439	# this is somewhat ugly, but style maps do need special treatment
440	sub is_style_map {
441	$_[0]{path} =~ m{^/styles/}
442	}
443
444	package cf;
445		447
446	#############################################################################	448	#############################################################################
447		449
448	=head2 ATTACHABLE OBJECTS	450	=head2 ATTACHABLE OBJECTS
449		451
…		…
575	our @CB_TYPE = (); # registry for type (cf-object class) based events	577	our @CB_TYPE = (); # registry for type (cf-object class) based events
576	our @CB_MAP = ();	578	our @CB_MAP = ();
577		579
578	my %attachment;	580	my %attachment;
579		581
		582	sub cf::attachable::thawer_merge {
		583	# simply override everything except _meta
		584	local $_[0]{_meta};
		585	%{$_[0]} = %{$_[1]};
		586	}
		587
580	sub _attach_cb($$$$) {	588	sub _attach_cb($$$$) {
581	my ($registry, $event, $prio, $cb) = @_;	589	my ($registry, $event, $prio, $cb) = @_;
582		590
583	use sort 'stable';	591	use sort 'stable';
584		592
…		…
618	$registry = $CB_TYPE[$object_type] ||= [];	626	$registry = $CB_TYPE[$object_type] ||= [];
619		627
620	} elsif ($type eq "subtype") {	628	} elsif ($type eq "subtype") {
621	defined $object_type or Carp::croak "subtype specified without type";	629	defined $object_type or Carp::croak "subtype specified without type";
622	my $object_subtype = shift @arg;	630	my $object_subtype = shift @arg;
623	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	631	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
624		632
625	} elsif ($type eq "package") {	633	} elsif ($type eq "package") {
626	my $pkg = shift @arg;	634	my $pkg = shift @arg;
627		635
628	while (my ($name, $id) = each %cb_id) {	636	while (my ($name, $id) = each %cb_id) {
…		…
669	if (ref $_[0]) {	677	if (ref $_[0]) {
670	_object_attach @_;	678	_object_attach @_;
671	} else {	679	} else {
672	_attach shift->_attach_registry, @_;	680	_attach shift->_attach_registry, @_;
673	}	681	}
		682	_recalc_want;
674	};	683	};
675		684
676	# all those should be optimised	685	# all those should be optimised
677	sub cf::attachable::detach {	686	sub cf::attachable::detach {
678	my ($obj, $name) = @_;	687	my ($obj, $name) = @_;
…		…
681	delete $obj->{_attachment}{$name};	690	delete $obj->{_attachment}{$name};
682	reattach ($obj);	691	reattach ($obj);
683	} else {	692	} else {
684	Carp::croak "cannot, currently, detach class attachments";	693	Carp::croak "cannot, currently, detach class attachments";
685	}	694	}
		695	_recalc_want;
686	};	696	};
687		697
688	sub cf::attachable::attached {	698	sub cf::attachable::attached {
689	my ($obj, $name) = @_;	699	my ($obj, $name) = @_;
690		700
…		…
755	# object support	765	# object support
756		766
757	sub reattach {	767	sub reattach {
758	# basically do the same as instantiate, without calling instantiate	768	# basically do the same as instantiate, without calling instantiate
759	my ($obj) = @_;	769	my ($obj) = @_;
		770
		771	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
760		772
761	my $registry = $obj->registry;	773	my $registry = $obj->registry;
762		774
763	@$registry = ();	775	@$registry = ();
764		776
…		…
811	$filename, length $$rdata, scalar @$objs;	823	$filename, length $$rdata, scalar @$objs;
812		824
813	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	825	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
814	chmod SAVE_MODE, $fh;	826	chmod SAVE_MODE, $fh;
815	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	827	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
816	aio_fsync $fh;	828	aio_fsync $fh if $cf::USE_FSYNC;
817	close $fh;	829	close $fh;
818		830
819	if (@$objs) {	831	if (@$objs) {
820	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) {
821	chmod SAVE_MODE, $fh;	833	chmod SAVE_MODE, $fh;
822	my $data = Storable::nfreeze { version => 1, objs => $objs };	834	my $data = Storable::nfreeze { version => 1, objs => $objs };
823	aio_write $fh, 0, (length $data), $data, 0;	835	aio_write $fh, 0, (length $data), $data, 0;
824	aio_fsync $fh;	836	aio_fsync $fh if $cf::USE_FSYNC;
825	close $fh;	837	close $fh;
826	aio_rename "$filename.pst~", "$filename.pst";	838	aio_rename "$filename.pst~", "$filename.pst";
827	}	839	}
828	} else {	840	} else {
829	aio_unlink "$filename.pst";	841	aio_unlink "$filename.pst";
…		…
861	or return;	873	or return;
862	$av = eval { (Storable::thaw $av)->{objs} };	874	$av = eval { (Storable::thaw $av)->{objs} };
863	}	875	}
864		876
865	warn sprintf "loading %s (%d)\n",	877	warn sprintf "loading %s (%d)\n",
866	$filename, length $data, scalar @{$av || []};#d#	878	$filename, length $data, scalar @{$av || []};
867	return ($data, $av);	879	return ($data, $av);
868	}	880	}
869		881
870	#############################################################################	882	#############################################################################
871	# command handling &c	883	# command handling &c
…		…
896	=cut	908	=cut
897		909
898	sub register_extcmd {	910	sub register_extcmd {
899	my ($name, $cb) = @_;	911	my ($name, $cb) = @_;
900		912
901	my $caller = caller;
902	#warn "registering extcmd '$name' to '$caller'";
903
904	$EXTCMD{$name} = [$cb, $caller];	913	$EXTCMD{$name} = $cb;
905	}	914	}
906		915
907	cf::player->attach (	916	cf::player->attach (
908	on_command => sub {	917	on_command => sub {
909	my ($pl, $name, $params) = @_;	918	my ($pl, $name, $params) = @_;
…		…
922		931
923	my $msg = eval { from_json $buf };	932	my $msg = eval { from_json $buf };
924		933
925	if (ref $msg) {	934	if (ref $msg) {
926	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	935	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
927	if (my %reply = $cb->[0]->($pl, $msg)) {	936	if (my %reply = $cb->($pl, $msg)) {
928	$pl->ext_reply ($msg->{msgid}, %reply);	937	$pl->ext_reply ($msg->{msgid}, %reply);
929	}	938	}
930	}	939	}
931	} else {	940	} else {
932	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	941	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
934		943
935	cf::override;	944	cf::override;
936	},	945	},
937	);	946	);
938		947
939	sub register {
940	my ($base, $pkg) = @_;
941
942	#TODO
943	}
944
945	sub load_extension {	948	sub load_extension {
946	my ($path) = @_;	949	my ($path) = @_;
947		950
948	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	951	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
949	my $base = $1;	952	my $base = $1;
950	my $pkg = $1;	953	my $pkg = $1;
951	$pkg =~ s/[^[:word:]]/_/g;	954	$pkg =~ s/[^[:word:]]/_/g;
952	$pkg = "ext::$pkg";	955	$pkg = "ext::$pkg";
953		956
954	warn "loading '$path' into '$pkg'\n";	957	warn "... loading '$path' into '$pkg'\n";
955		958
956	open my $fh, "<:utf8", $path	959	open my $fh, "<:utf8", $path
957	or die "$path: $!";	960	or die "$path: $!";
958		961
959	my $source =	962	my $source =
960	"package $pkg; use strict; use utf8;\n"	963	"package $pkg; use strict; use utf8;\n"
961	. "#line 1 \"$path\"\n{\n"	964	. "#line 1 \"$path\"\n{\n"
962	. (do { local $/; <$fh> })	965	. (do { local $/; <$fh> })
963	. "\n};\n1";	966	. "\n};\n1";
964		967
965	eval $source	968	unless (eval $source) {
966	or die $@ ? "$path: $@\n"	969	my $msg = $@ ? "$path: $@\n"
967	: "extension disabled.\n";	970	: "extension disabled.\n";
968		971	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
969	push @exts, $pkg;	972	warn $@;
970	$ext_pkg{$base} = $pkg;	973	warn "mandatory extension failed to load, exiting.\n";
971		974	exit 1;
972	# no strict 'refs';	975	}
973	# @{"$pkg\::ISA"} = ext::;	976	die $@;
974
975	register $base, $pkg;
976	}
977
978	sub unload_extension {
979	my ($pkg) = @_;
980
981	warn "removing extension $pkg\n";
982
983	# remove hooks
984	#TODO
985	# for my $idx (0 .. $#PLUGIN_EVENT) {
986	# delete $hook[$idx]{$pkg};
987	# }	977	}
988		978
989	# remove commands	979	push @EXTS, $pkg;
990	for my $name (keys %COMMAND) {
991	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
992
993	if (@cb) {
994	$COMMAND{$name} = \@cb;
995	} else {
996	delete $COMMAND{$name};
997	}
998	}
999
1000	# remove extcmds
1001	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1002	delete $EXTCMD{$name};
1003	}
1004
1005	if (my $cb = $pkg->can ("unload")) {
1006	eval {
1007	$cb->($pkg);
1008	1
1009	} or warn "$pkg unloaded, but with errors: $@";
1010	}
1011
1012	Symbol::delete_package $pkg;
1013	}	980	}
1014		981
1015	sub load_extensions {	982	sub load_extensions {
1016	for my $ext (<$LIBDIR/*.ext>) {	983	for my $ext (<$LIBDIR/*.ext>) {
1017	next unless -r $ext;	984	next unless -r $ext;
…		…
1021	} or warn "$ext not loaded: $@";	988	} or warn "$ext not loaded: $@";
1022	}	989	}
1023	}	990	}
1024		991
1025	#############################################################################	992	#############################################################################
1026	# load/save/clean perl data associated with a map
1027
1028	*cf::mapsupport::on_clean = sub {
1029	my ($map) = @_;
1030
1031	my $path = $map->tmpname;
1032	defined $path or return;
1033
1034	unlink "$path.pst";
1035	};
1036
1037	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1038
1039	#############################################################################
1040	# load/save perl data associated with player->ob objects
1041
1042	sub all_objects(@) {
1043	@_, map all_objects ($_->inv), @_
1044	}
1045
1046	# TODO: compatibility cruft, remove when no longer needed
1047	cf::player->attach (
1048	on_load => sub {
1049	my ($pl, $path) = @_;
1050
1051	for my $o (all_objects $pl->ob) {
1052	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1053	$o->set_ob_key_value ("_perl_data");
1054
1055	%$o = %{ Storable::thaw pack "H*", $value };
1056	}
1057	}
1058	},
1059	);
1060
1061	#############################################################################
1062		993
1063	=head2 CORE EXTENSIONS	994	=head2 CORE EXTENSIONS
1064		995
1065	Functions and methods that extend core crossfire objects.	996	Functions and methods that extend core crossfire objects.
1066		997
		998	=cut
		999
		1000	package cf::player;
		1001
		1002	use Coro::AIO;
		1003
1067	=head3 cf::player	1004	=head3 cf::player
1068		1005
1069	=over 4	1006	=over 4
1070		1007
1071	=item cf::player::exists $login	1008	=item cf::player::find $login
1072		1009
1073	Returns true when the given account exists.	1010	Returns the given player object, loading it if necessary (might block).
1074		1011
1075	=cut	1012	=cut
1076		1013
1077	sub cf::player::exists($) {	1014	sub playerdir($) {
1078	cf::player::find $_[0]	1015	"$PLAYERDIR/"
1079	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	1016	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1080	}	1017	}
1081		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
1082	=item $player->ext_reply ($msgid, $msgtype, %msg)	1190	=item $player->ext_reply ($msgid, %msg)
1083		1191
1084	Sends an ext reply to the player.	1192	Sends an ext reply to the player.
1085		1193
1086	=cut	1194	=cut
1087		1195
1088	sub cf::player::ext_reply($$$%) {	1196	sub ext_reply($$%) {
1089	my ($self, $id, %msg) = @_;	1197	my ($self, $id, %msg) = @_;
1090		1198
1091	$msg{msgid} = $id;	1199	$msg{msgid} = $id;
1092		1200
1093	$self->send ("ext " . to_json \%msg);	1201	$self->send ("ext " . cf::to_json \%msg);
		1202	}
		1203
		1204	=item $player->ext_event ($type, %msg)
		1205
		1206	Sends an ext event to the client.
		1207
		1208	=cut
		1209
		1210	sub ext_event($$%) {
		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
1094	}	1243	}
1095		1244
1096	=back	1245	=back
1097
1098		1246
1099	=head3 cf::map	1247	=head3 cf::map
1100		1248
1101	=over 4	1249	=over 4
1102		1250
…		…
1105	package cf::map;	1253	package cf::map;
1106		1254
1107	use Fcntl;	1255	use Fcntl;
1108	use Coro::AIO;	1256	use Coro::AIO;
1109		1257
		1258	use overload
		1259	'""' => \&as_string,
		1260	fallback => 1;
		1261
1110	our $MAX_RESET = 3600;	1262	our $MAX_RESET = 3600;
1111	our $DEFAULT_RESET = 3000;	1263	our $DEFAULT_RESET = 3000;
1112		1264
1113	sub generate_random_map {	1265	sub generate_random_map {
1114	my ($path, $rmp) = @_;	1266	my ($self, $rmp) = @_;
1115
1116	# mit "rum" bekleckern, nicht	1267	# mit "rum" bekleckern, nicht
1117	cf::map::_create_random_map	1268	$self->_create_random_map (
1118	$path,
1119	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1269	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1120	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1270	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1121	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1271	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1122	$rmp->{exit_on_final_map},	1272	$rmp->{exit_on_final_map},
1123	$rmp->{xsize}, $rmp->{ysize},	1273	$rmp->{xsize}, $rmp->{ysize},
1124	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1274	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1125	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1275	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1126	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1276	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1127	$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},
1128	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1278	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1129	(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"
1130	}	1408	}
1131		1409
1132	# and all this just because we cannot iterate over	1410	# and all this just because we cannot iterate over
1133	# all maps in C++...	1411	# all maps in C++...
1134	sub change_all_map_light {	1412	sub change_all_map_light {
…		…
1136		1414
1137	$_->change_map_light ($change)	1415	$_->change_map_light ($change)
1138	for grep $_->outdoor, values %cf::MAP;	1416	for grep $_->outdoor, values %cf::MAP;
1139	}	1417	}
1140		1418
		1419	sub decay_objects {
		1420	my ($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
1141	sub try_load_header($) {	1435	sub load_header_from($) {
1142	my ($path) = @_;	1436	my ($self, $path) = @_;
1143		1437
1144	utf8::encode $path;	1438	utf8::encode $path;
1145	aio_open $path, O_RDONLY, 0	1439	#aio_open $path, O_RDONLY, 0
		1440	# or return;
		1441
		1442	$self->_load_header ($path)
1146	or return;	1443	or return;
1147		1444
1148	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
1149	or return;	1488	or return;
		1489	$self->prepare_orig;
		1490	}
1150		1491
1151	# for better error messages only, will be overwritten	1492	$self->{deny_reset} = 1
1152	$map->path ($path);	1493	if $self->no_reset;
1153		1494
1154	$map->load_header ($path)	1495	$self->default_region (cf::region::find_by_path $self->{path})
1155	or return;	1496	unless $self->default_region;
1156		1497
1157	$map->{load_path} = $path;	1498	1
1158
1159	$map
1160	}	1499	}
1161		1500
1162	sub find;	1501	sub find;
1163	sub find {	1502	sub find {
1164	my ($path, $origin) = @_;	1503	my ($path, $origin) = @_;
1165		1504
1166	#warn "find<$path,$origin>\n";#d#
1167
1168	$path = new cf::path $path, $origin && $origin->path;	1505	$path = normalise $path, $origin && $origin->path;
1169	my $key = $path->as_string;
1170		1506
1171	cf::lock_wait "map_find:$key";	1507	cf::lock_wait "map_find:$path";
1172		1508
1173	$cf::MAP{$key} || do {	1509	$cf::MAP{$path} || do {
1174	my $guard = cf::lock_acquire "map_find:$key";	1510	my $guard = cf::lock_acquire "map_find:$path";
1175		1511	my $map = new_from_path cf::map $path
1176	# do it the slow way
1177	my $map = try_load_header $path->save_path;
1178
1179	Coro::cede;
1180
1181	if ($map) {
1182	$map->last_access ((delete $map->{last_access})
1183	|| $cf::RUNTIME); #d#
1184	# safety
1185	$map->{instantiate_time} = $cf::RUNTIME
1186	if $map->{instantiate_time} > $cf::RUNTIME;
1187	} else {
1188	if (my $rmp = $path->random_map_params) {
1189	$map = generate_random_map $key, $rmp;
1190	} else {
1191	$map = try_load_header $path->load_path;
1192	}
1193
1194	$map or return;	1512	or return;
1195		1513
1196	$map->{load_original} = 1;
1197	$map->{instantiate_time} = $cf::RUNTIME;
1198	$map->last_access ($cf::RUNTIME);
1199	$map->instantiate;
1200
1201	# per-player maps become, after loading, normal maps
1202	$map->per_player (0) if $path->{user_rel};
1203	}
1204
1205	$map->path ($key);
1206	$map->{path} = $path;
1207	$map->{last_save} = $cf::RUNTIME;	1514	$map->{last_save} = $cf::RUNTIME;
1208		1515
1209	Coro::cede;	1516	$map->load_header
		1517	or return;
1210		1518
1211	if ($map->should_reset) {	1519	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1520	# doing this can freeze the server in a sync job, obviously
		1521	#$cf::WAIT_FOR_TICK->wait;
1212	$map->reset;	1522	$map->reset;
1213	undef $guard;	1523	undef $guard;
1214	$map = find $path	1524	return find $path;
1215	or return;
1216	}	1525	}
1217		1526
1218	$cf::MAP{$key} = $map	1527	$cf::MAP{$path} = $map
1219	}	1528	}
1220	}	1529	}
		1530
		1531	sub pre_load { }
		1532	sub post_load { }
1221		1533
1222	sub load {	1534	sub load {
1223	my ($self) = @_;	1535	my ($self) = @_;
1224		1536
		1537	local $self->{deny_reset} = 1; # loading can take a long time
		1538
1225	my $path = $self->{path};	1539	my $path = $self->{path};
		1540
		1541	{
1226	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1542	my $guard = cf::lock_acquire "map_load:$path";
1227		1543
1228	return if $self->in_memory != cf::MAP_SWAPPED;	1544	return if $self->in_memory != cf::MAP_SWAPPED;
1229		1545
1230	$self->in_memory (cf::MAP_LOADING);	1546	$self->in_memory (cf::MAP_LOADING);
1231		1547
1232	$self->alloc;	1548	$self->alloc;
		1549
		1550	$self->pre_load;
		1551	Coro::cede;
		1552
1233	$self->load_objects ($self->{load_path}, 1)	1553	$self->_load_objects ($self->{load_path}, 1)
1234	or return;	1554	or return;
1235		1555
1236	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1556	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1237	if delete $self->{load_original};	1557	if delete $self->{load_original};
1238		1558
1239	if (my $uniq = $path->uniq_path) {	1559	if (my $uniq = $self->uniq_path) {
1240	utf8::encode $uniq;	1560	utf8::encode $uniq;
1241	if (aio_open $uniq, O_RDONLY, 0) {	1561	if (aio_open $uniq, O_RDONLY, 0) {
1242	$self->clear_unique_items;	1562	$self->clear_unique_items;
1243	$self->load_objects ($uniq, 0);	1563	$self->_load_objects ($uniq, 0);
1244	}	1564	}
1245	}	1565	}
1246		1566
1247	Coro::cede;	1567	Coro::cede;
1248
1249	# now do the right thing for maps	1568	# now do the right thing for maps
1250	$self->link_multipart_objects;	1569	$self->link_multipart_objects;
1251
1252	if ($self->{path}->is_style_map) {
1253	$self->{deny_save} = 1;
1254	$self->{deny_reset} = 1;
1255	} else {
1256	$self->fix_auto_apply;
1257	$self->decay_objects;
1258	$self->update_buttons;
1259	$self->set_darkness_map;
1260	$self->difficulty ($self->estimate_difficulty)	1570	$self->difficulty ($self->estimate_difficulty)
1261	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;
1262	$self->activate;	1581	$self->activate;
1263	}	1582	}
1264		1583
1265	Coro::cede;
1266
1267	$self->in_memory (cf::MAP_IN_MEMORY);	1584	$self->in_memory (cf::MAP_IN_MEMORY);
		1585	}
		1586
		1587	$self->post_load;
		1588	}
		1589
		1590	sub customise_for {
		1591	my ($self, $ob) = @_;
		1592
		1593	return find "~" . $ob->name . "/" . $self->{path}
		1594	if $self->per_player;
		1595
		1596	# return find "?party/" . $ob->name . "/" . $self->{path}
		1597	# if $self->per_party;
		1598
		1599	$self
		1600	}
		1601
		1602	# find and load all maps in the 3x3 area around a map
		1603	sub load_diag {
		1604	my ($map) = @_;
		1605
		1606	my @diag; # diagonal neighbours
		1607
		1608	for (0 .. 3) {
		1609	my $neigh = $map->tile_path ($_)
		1610	or next;
		1611	$neigh = find $neigh, $map
		1612	or next;
		1613	$neigh->load;
		1614
		1615	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1616	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1617	}
		1618
		1619	for (@diag) {
		1620	my $neigh = find @$_
		1621	or next;
		1622	$neigh->load;
		1623	}
1268	}	1624	}
1269		1625
1270	sub find_sync {	1626	sub find_sync {
1271	my ($path, $origin) = @_;	1627	my ($path, $origin) = @_;
1272		1628
1273	cf::sync_job { cf::map::find $path, $origin }	1629	cf::sync_job { find $path, $origin }
1274	}	1630	}
1275		1631
1276	sub do_load_sync {	1632	sub do_load_sync {
1277	my ($map) = @_;	1633	my ($map) = @_;
1278		1634
1279	cf::sync_job { $map->load };	1635	cf::sync_job { $map->load };
1280	}	1636	}
1281		1637
		1638	our %MAP_PREFETCH;
		1639	our $MAP_PREFETCHER = undef;
		1640
		1641	sub find_async {
		1642	my ($path, $origin) = @_;
		1643
		1644	$path = normalise $path, $origin && $origin->{path};
		1645
		1646	if (my $map = $cf::MAP{$path}) {
		1647	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1648	}
		1649
		1650	undef $MAP_PREFETCH{$path};
		1651	$MAP_PREFETCHER ||= cf::async {
		1652	while (%MAP_PREFETCH) {
		1653	for my $path (keys %MAP_PREFETCH) {
		1654	my $map = find $path
		1655	or next;
		1656	$map->load;
		1657
		1658	delete $MAP_PREFETCH{$path};
		1659	}
		1660	}
		1661	undef $MAP_PREFETCHER;
		1662	};
		1663	$MAP_PREFETCHER->prio (6);
		1664
		1665	()
		1666	}
		1667
1282	sub save {	1668	sub save {
1283	my ($self) = @_;	1669	my ($self) = @_;
1284		1670
1285	my $lock = cf::lock_acquire "map_data:" . $self->path;	1671	my $lock = cf::lock_acquire "map_data:" . $self->path;
1286		1672
1287	$self->{last_save} = $cf::RUNTIME;	1673	$self->{last_save} = $cf::RUNTIME;
1288		1674
1289	return unless $self->dirty;	1675	return unless $self->dirty;
1290		1676
1291	my $save = $self->{path}->save_path; utf8::encode $save;	1677	my $save = $self->save_path; utf8::encode $save;
1292	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	1678	my $uniq = $self->uniq_path; utf8::encode $uniq;
1293		1679
1294	$self->{load_path} = $save;	1680	$self->{load_path} = $save;
1295		1681
1296	return if $self->{deny_save};	1682	return if $self->{deny_save};
1297		1683
1298	local $self->{last_access} = $self->last_access;#d#	1684	local $self->{last_access} = $self->last_access;#d#
1299		1685
		1686	cf::async {
		1687	$_->contr->save for $self->players;
		1688	};
		1689
1300	if ($uniq) {	1690	if ($uniq) {
1301	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1691	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1302	$self->save_objects ($uniq, cf::IO_UNIQUES);	1692	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1303	} else {	1693	} else {
1304	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1694	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1305	}	1695	}
1306	}	1696	}
1307		1697
1308	sub swap_out {	1698	sub swap_out {
1309	my ($self) = @_;	1699	my ($self) = @_;
…		…
1323		1713
1324	sub reset_at {	1714	sub reset_at {
1325	my ($self) = @_;	1715	my ($self) = @_;
1326		1716
1327	# TODO: safety, remove and allow resettable per-player maps	1717	# TODO: safety, remove and allow resettable per-player maps
1328	return 1e99 if $self->{path}{user_rel};
1329	return 1e99 if $self->{deny_reset};	1718	return 1e99 if $self->{deny_reset};
1330		1719
1331	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1720	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1332	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1721	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1333		1722
…		…
1338	my ($self) = @_;	1727	my ($self) = @_;
1339		1728
1340	$self->reset_at <= $cf::RUNTIME	1729	$self->reset_at <= $cf::RUNTIME
1341	}	1730	}
1342		1731
1343	sub unlink_save {
1344	my ($self) = @_;
1345
1346	utf8::encode (my $save = $self->{path}->save_path);
1347	aioreq_pri 3; IO::AIO::aio_unlink $save;
1348	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1349	}
1350
1351	sub rename {
1352	my ($self, $new_path) = @_;
1353
1354	$self->unlink_save;
1355
1356	delete $cf::MAP{$self->path};
1357	$self->{path} = new cf::path $new_path;
1358	$self->path ($self->{path}->as_string);
1359	$cf::MAP{$self->path} = $self;
1360
1361	$self->save;
1362	}
1363
1364	sub reset {	1732	sub reset {
1365	my ($self) = @_;	1733	my ($self) = @_;
1366		1734
1367	my $lock = cf::lock_acquire "map_data:" . $self->path;	1735	my $lock = cf::lock_acquire "map_data:$self->{path}";
1368		1736
1369	return if $self->players;	1737	return if $self->players;
1370	return if $self->{path}{user_rel};#d#
1371		1738
1372	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	}
1373		1750
1374	delete $cf::MAP{$self->path};	1751	delete $cf::MAP{$self->path};
		1752
		1753	$self->clear;
1375		1754
1376	$_->clear_links_to ($self) for values %cf::MAP;	1755	$_->clear_links_to ($self) for values %cf::MAP;
1377		1756
1378	$self->unlink_save;	1757	$self->unlink_save;
1379	$self->destroy;	1758	$self->destroy;
…		…
1382	my $nuke_counter = "aaaa";	1761	my $nuke_counter = "aaaa";
1383		1762
1384	sub nuke {	1763	sub nuke {
1385	my ($self) = @_;	1764	my ($self) = @_;
1386		1765
		1766	delete $cf::MAP{$self->path};
		1767
		1768	$self->unlink_save;
		1769
		1770	bless $self, "cf::map";
		1771	delete $self->{deny_reset};
1387	$self->{deny_save} = 1;	1772	$self->{deny_save} = 1;
1388	$self->reset_timeout (1);	1773	$self->reset_timeout (1);
1389	$self->rename ("{nuke}/" . ($nuke_counter++));	1774	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1775
		1776	$cf::MAP{$self->path} = $self;
		1777
1390	$self->reset; # polite request, might not happen	1778	$self->reset; # polite request, might not happen
1391	}	1779	}
1392		1780
1393	sub customise_for {	1781	=item $maps = cf::map::tmp_maps
1394	my ($map, $ob) = @_;
1395		1782
1396	if ($map->per_player) {	1783	Returns an arrayref with all map paths of currently instantiated and saved
1397	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	1784	maps. May block.
		1785
		1786	=cut
		1787
		1788	sub tmp_maps() {
1398	}	1789	[
1399		1790	map {
1400	$map	1791	utf8::decode $_;
		1792	/\.map$/
		1793	? normalise $_
		1794	: ()
		1795	} @{ aio_readdir $TMPDIR or [] }
		1796	]
1401	}	1797	}
1402		1798
1403	sub emergency_save {	1799	=item $maps = cf::map::random_maps
1404	my $freeze_guard = cf::freeze_mainloop;
1405		1800
1406	warn "enter emergency map save\n";	1801	Returns an arrayref with all map paths of currently instantiated and saved
		1802	random maps. May block.
1407		1803
1408	cf::sync_job {	1804	=cut
1409	warn "begin emergency map save\n";
1410	$_->save for values %cf::MAP;
1411	};
1412		1805
1413	warn "end emergency map save\n";	1806	sub random_maps() {
		1807	[
		1808	map {
		1809	utf8::decode $_;
		1810	/\.map$/
		1811	? normalise "?random/$_"
		1812	: ()
		1813	} @{ aio_readdir $RANDOMDIR or [] }
		1814	]
		1815	}
		1816
		1817	=item cf::map::unique_maps
		1818
		1819	Returns an arrayref of paths of all shared maps that have
		1820	instantiated unique items. May block.
		1821
		1822	=cut
		1823
		1824	sub unique_maps() {
		1825	[
		1826	map {
		1827	utf8::decode $_;
		1828	/\.map$/
		1829	? normalise $_
		1830	: ()
		1831	} @{ aio_readdir $UNIQUEDIR or [] }
		1832	]
1414	}	1833	}
1415		1834
1416	package cf;	1835	package cf;
1417		1836
1418	=back	1837	=back
1419		1838
		1839	=head3 cf::object
		1840
		1841	=cut
		1842
		1843	package cf::object;
		1844
		1845	=over 4
		1846
		1847	=item $ob->inv_recursive
		1848
		1849	Returns the inventory of the object _and_ their inventories, recursively.
		1850
		1851	=cut
		1852
		1853	sub inv_recursive_;
		1854	sub inv_recursive_ {
		1855	map { $_, inv_recursive_ $_->inv } @_
		1856	}
		1857
		1858	sub inv_recursive {
		1859	inv_recursive_ inv $_[0]
		1860	}
		1861
		1862	package cf;
		1863
		1864	=back
1420		1865
1421	=head3 cf::object::player	1866	=head3 cf::object::player
1422		1867
1423	=over 4	1868	=over 4
1424		1869
…		…
1464		1909
1465	=item $player_object->enter_link	1910	=item $player_object->enter_link
1466		1911
1467	Freezes the player and moves him/her to a special map (C<{link}>).	1912	Freezes the player and moves him/her to a special map (C<{link}>).
1468		1913
1469	The player should be reaosnably safe there for short amounts of time. You	1914	The player should be reasonably safe there for short amounts of time. You
1470	I<MUST> call C<leave_link> as soon as possible, though.	1915	I<MUST> call C<leave_link> as soon as possible, though.
1471		1916
		1917	Will never block.
		1918
1472	=item $player_object->leave_link ($map, $x, $y)	1919	=item $player_object->leave_link ($map, $x, $y)
1473		1920
1474	Moves the player out of the specila link map onto the given map. If the	1921	Moves the player out of the special C<{link}> map onto the specified
1475	map is not valid (or omitted), the player will be moved back to the	1922	map. If the map is not valid (or omitted), the player will be moved back
1476	location he/she was before the call to C<enter_link>, or, if that fails,	1923	to the location he/she was before the call to C<enter_link>, or, if that
1477	to the emergency map position.	1924	fails, to the emergency map position.
1478		1925
1479	Might block.	1926	Might block.
1480		1927
1481	=cut	1928	=cut
		1929
		1930	sub link_map {
		1931	unless ($LINK_MAP) {
		1932	$LINK_MAP = cf::map::find "{link}"
		1933	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		1934	$LINK_MAP->load;
		1935	}
		1936
		1937	$LINK_MAP
		1938	}
1482		1939
1483	sub cf::object::player::enter_link {	1940	sub cf::object::player::enter_link {
1484	my ($self) = @_;	1941	my ($self) = @_;
1485		1942
1486	$self->deactivate_recursive;	1943	$self->deactivate_recursive;
1487		1944
1488	return if $self->map == $LINK_MAP;	1945	return if UNIVERSAL::isa $self->map, "ext::map_link";
1489		1946
1490	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	1947	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1491	if $self->map;	1948	if $self->map && $self->map->{path} ne "{link}";
1492		1949
1493	$self->enter_map ($LINK_MAP, 20, 20);	1950	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1494	}	1951	}
1495		1952
1496	sub cf::object::player::leave_link {	1953	sub cf::object::player::leave_link {
1497	my ($self, $map, $x, $y) = @_;	1954	my ($self, $map, $x, $y) = @_;
		1955
		1956	return unless $self->contr->active;
1498		1957
1499	my $link_pos = delete $self->{_link_pos};	1958	my $link_pos = delete $self->{_link_pos};
1500		1959
1501	unless ($map) {	1960	unless ($map) {
1502	# restore original map position	1961	# restore original map position
…		…
1516	# use -1 or undef as default coordinates, not 0, 0	1975	# use -1 or undef as default coordinates, not 0, 0
1517	($x, $y) = ($map->enter_x, $map->enter_y)	1976	($x, $y) = ($map->enter_x, $map->enter_y)
1518	if $x <=0 && $y <= 0;	1977	if $x <=0 && $y <= 0;
1519		1978
1520	$map->load;	1979	$map->load;
		1980	$map->load_diag;
1521		1981
		1982	return unless $self->contr->active;
1522	$self->activate_recursive;	1983	$self->activate_recursive;
		1984
		1985	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1523	$self->enter_map ($map, $x, $y);	1986	$self->enter_map ($map, $x, $y);
1524	}	1987	}
1525		1988
1526	cf::player->attach (
1527	on_logout => sub {
1528	my ($pl) = @_;
1529
1530	# abort map switching before logout
1531	if ($pl->ob->{_link_pos}) {
1532	cf::sync_job {
1533	$pl->ob->leave_link
1534	};
1535	}
1536	},
1537	on_login => sub {
1538	my ($pl) = @_;
1539
1540	# try to abort aborted map switching on player login :)
1541	# should happen only on crashes
1542	if ($pl->ob->{_link_pos}) {
1543	$pl->ob->enter_link;
1544	Coro::async_pool {
1545	# we need this sleep as the login has a concurrent enter_exit running
1546	# and this sleep increases chances of the player not ending up in scorn
1547	Coro::Timer::sleep 1;
1548	$pl->ob->leave_link;
1549	};
1550	}
1551	},
1552	);
1553
1554	=item $player_object->goto ($path, $x, $y)	1989	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1555		1990
		1991	Moves the player to the given map-path and coordinates by first freezing
		1992	her, loading and preparing them map, calling the provided $check callback
		1993	that has to return the map if sucecssful, and then unfreezes the player on
		1994	the new (success) or old (failed) map position.
		1995
1556	=cut	1996	=cut
		1997
		1998	our $GOTOGEN;
1557		1999
1558	sub cf::object::player::goto {	2000	sub cf::object::player::goto {
1559	my ($self, $path, $x, $y) = @_;	2001	my ($self, $path, $x, $y, $check) = @_;
		2002
		2003	# do generation counting so two concurrent goto's will be executed in-order
		2004	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1560		2005
1561	$self->enter_link;	2006	$self->enter_link;
1562		2007
1563	(Coro::async_pool {	2008	(async {
1564	$path = new cf::path $path;	2009	my $map = eval {
1565
1566	my $map = cf::map::find $path->as_string;	2010	my $map = cf::map::find $path;
		2011
		2012	if ($map) {
1567	$map = $map->customise_for ($self) if $map;	2013	$map = $map->customise_for ($self);
1568		2014	$map = $check->($map) if $check && $map;
1569	# warn "entering ", $map->path, " at ($x, $y)\n"	2015	} else {
1570	# if $map;
1571
1572	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2016	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2017	}
1573		2018
		2019	$map
		2020	};
		2021
		2022	if ($@) {
		2023	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2024	LOG llevError | logBacktrace, Carp::longmess $@;
		2025	}
		2026
		2027	if ($gen == $self->{_goto_generation}) {
		2028	delete $self->{_goto_generation};
1574	$self->leave_link ($map, $x, $y);	2029	$self->leave_link ($map, $x, $y);
		2030	}
1575	})->prio (1);	2031	})->prio (1);
1576	}	2032	}
1577		2033
1578	=item $player_object->enter_exit ($exit_object)	2034	=item $player_object->enter_exit ($exit_object)
1579		2035
…		…
1581		2037
1582	sub parse_random_map_params {	2038	sub parse_random_map_params {
1583	my ($spec) = @_;	2039	my ($spec) = @_;
1584		2040
1585	my $rmp = { # defaults	2041	my $rmp = { # defaults
1586	xsize => 10,	2042	xsize => (cf::rndm 15, 40),
1587	ysize => 10,	2043	ysize => (cf::rndm 15, 40),
		2044	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2045	#layout => string,
1588	};	2046	};
1589		2047
1590	for (split /\n/, $spec) {	2048	for (split /\n/, $spec) {
1591	my ($k, $v) = split /\s+/, $_, 2;	2049	my ($k, $v) = split /\s+/, $_, 2;
1592		2050
…		…
1596	$rmp	2054	$rmp
1597	}	2055	}
1598		2056
1599	sub prepare_random_map {	2057	sub prepare_random_map {
1600	my ($exit) = @_;	2058	my ($exit) = @_;
		2059
		2060	my $guard = cf::lock_acquire "exit_prepare:$exit";
1601		2061
1602	# all this does is basically replace the /! path by	2062	# all this does is basically replace the /! path by
1603	# a new random map path (?random/...) with a seed	2063	# a new random map path (?random/...) with a seed
1604	# that depends on the exit object	2064	# that depends on the exit object
1605		2065
1606	my $rmp = parse_random_map_params $exit->msg;	2066	my $rmp = parse_random_map_params $exit->msg;
1607		2067
1608	if ($exit->map) {	2068	if ($exit->map) {
1609	$rmp->{region} = $exit->map->region_name;	2069	$rmp->{region} = $exit->region->name;
1610	$rmp->{origin_map} = $exit->map->path;	2070	$rmp->{origin_map} = $exit->map->path;
1611	$rmp->{origin_x} = $exit->x;	2071	$rmp->{origin_x} = $exit->x;
1612	$rmp->{origin_y} = $exit->y;	2072	$rmp->{origin_y} = $exit->y;
1613	}	2073	}
1614		2074
1615	$rmp->{random_seed} ||= $exit->random_seed;	2075	$rmp->{random_seed} ||= $exit->random_seed;
1616		2076
1617	my $data = cf::to_json $rmp;	2077	my $data = cf::to_json $rmp;
1618	my $md5 = Digest::MD5::md5_hex $data;	2078	my $md5 = Digest::MD5::md5_hex $data;
		2079	my $meta = "$RANDOMDIR/$md5.meta";
1619		2080
1620	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2081	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1621	aio_write $fh, 0, (length $data), $data, 0;	2082	aio_write $fh, 0, (length $data), $data, 0;
		2083	undef $fh;
		2084	aio_rename "$meta~", $meta;
1622		2085
1623	$exit->slaying ("?random/$md5");	2086	$exit->slaying ("?random/$md5");
1624	$exit->msg (undef);	2087	$exit->msg (undef);
1625	}	2088	}
1626	}	2089	}
…		…
1628	sub cf::object::player::enter_exit {	2091	sub cf::object::player::enter_exit {
1629	my ($self, $exit) = @_;	2092	my ($self, $exit) = @_;
1630		2093
1631	return unless $self->type == cf::PLAYER;	2094	return unless $self->type == cf::PLAYER;
1632		2095
		2096	if ($exit->slaying eq "/!") {
		2097	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2098	# the problem is that $exit might not survive long enough
		2099	# so it needs to be done right now, right here
		2100	cf::sync_job { prepare_random_map $exit };
		2101	}
		2102
		2103	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2104	my $hp = $exit->stats->hp;
		2105	my $sp = $exit->stats->sp;
		2106
1633	$self->enter_link;	2107	$self->enter_link;
1634		2108
1635	(Coro::async_pool {	2109	(async {
1636	$self->deactivate_recursive; # just to be sure	2110	$self->deactivate_recursive; # just to be sure
1637	unless (eval {	2111	unless (eval {
1638	prepare_random_map $exit	2112	$self->goto ($slaying, $hp, $sp);
1639	if $exit->slaying eq "/!";
1640
1641	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1642	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1643		2113
1644	1;	2114	1;
1645	}) {	2115	}) {
1646	$self->message ("Something went wrong deep within the crossfire server. "	2116	$self->message ("Something went wrong deep within the crossfire server. "
1647	. "I'll try to bring you back to the map you were before. "	2117	. "I'll try to bring you back to the map you were before. "
1648	. "Please report this to the dungeon master",	2118	. "Please report this to the dungeon master!",
1649	cf::NDI_UNIQUE | cf::NDI_RED);	2119	cf::NDI_UNIQUE | cf::NDI_RED);
1650		2120
1651	warn "ERROR in enter_exit: $@";	2121	warn "ERROR in enter_exit: $@";
1652	$self->leave_link;	2122	$self->leave_link;
1653	}	2123	}
1654	})->prio (1);	2124	})->prio (1);
…		…
1667		2137
1668	sub cf::client::send_drawinfo {	2138	sub cf::client::send_drawinfo {
1669	my ($self, $text, $flags) = @_;	2139	my ($self, $text, $flags) = @_;
1670		2140
1671	utf8::encode $text;	2141	utf8::encode $text;
1672	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2142	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1673	}	2143	}
1674		2144
		2145	=item $client->ext_event ($type, %msg)
		2146
		2147	Sends an exti event to the client.
		2148
		2149	=cut
		2150
		2151	sub cf::client::ext_event($$%) {
		2152	my ($self, $type, %msg) = @_;
		2153
		2154	$msg{msgtype} = "event_$type";
		2155	$self->send_packet ("ext " . cf::to_json \%msg);
		2156	}
1675		2157
1676	=item $success = $client->query ($flags, "text", \&cb)	2158	=item $success = $client->query ($flags, "text", \&cb)
1677		2159
1678	Queues a query to the client, calling the given callback with	2160	Queues a query to the client, calling the given callback with
1679	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2161	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
…		…
1708	# get handled first	2190	# get handled first
1709	my $queue = delete $ns->{query_queue}	2191	my $queue = delete $ns->{query_queue}
1710	or return; # be conservative, not sure how that can happen, but we saw a crash here	2192	or return; # be conservative, not sure how that can happen, but we saw a crash here
1711		2193
1712	(shift @$queue)->[1]->($msg);	2194	(shift @$queue)->[1]->($msg);
		2195	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1713		2196
1714	push @{ $ns->{query_queue} }, @$queue;	2197	push @{ $ns->{query_queue} }, @$queue;
1715		2198
1716	if (@{ $ns->{query_queue} } == @$queue) {	2199	if (@{ $ns->{query_queue} } == @$queue) {
1717	if (@$queue) {	2200	if (@$queue) {
…		…
1721	}	2204	}
1722	}	2205	}
1723	},	2206	},
1724	);	2207	);
1725		2208
1726	=item $client->coro (\&cb)	2209	=item $client->async (\&cb)
1727		2210
1728	Create a new coroutine, running the specified callback. The coroutine will	2211	Create a new coroutine, running the specified callback. The coroutine will
1729	be automatically cancelled when the client gets destroyed (e.g. on logout,	2212	be automatically cancelled when the client gets destroyed (e.g. on logout,
1730	or loss of connection).	2213	or loss of connection).
1731		2214
1732	=cut	2215	=cut
1733		2216
1734	sub cf::client::coro {	2217	sub cf::client::async {
1735	my ($self, $cb) = @_;	2218	my ($self, $cb) = @_;
1736		2219
1737	my $coro = &Coro::async_pool ($cb);	2220	my $coro = &Coro::async ($cb);
1738		2221
1739	$coro->on_destroy (sub {	2222	$coro->on_destroy (sub {
1740	delete $self->{_coro}{$coro+0};	2223	delete $self->{_coro}{$coro+0};
1741	});	2224	});
1742		2225
…		…
1775		2258
1776	# here we export the classes and methods available to script code	2259	# here we export the classes and methods available to script code
1777		2260
1778	=pod	2261	=pod
1779		2262
1780	The following fucntions and emthods are available within a safe environment:	2263	The following functions and methods are available within a safe environment:
1781		2264
1782	cf::object contr pay_amount pay_player map	2265	cf::object contr pay_amount pay_player map
1783	cf::object::player player	2266	cf::object::player player
1784	cf::player peaceful	2267	cf::player peaceful
1785	cf::map trigger	2268	cf::map trigger
…		…
1870	#############################################################################	2353	#############################################################################
1871		2354
1872	=head2 EXTENSION DATABASE SUPPORT	2355	=head2 EXTENSION DATABASE SUPPORT
1873		2356
1874	Crossfire maintains a very simple database for extension use. It can	2357	Crossfire maintains a very simple database for extension use. It can
1875	currently store anything that can be serialised using Storable, which	2358	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
1876	excludes objects.	2359	convert to/from binary).
1877		2360
1878	The parameter C<$family> should best start with the name of the extension	2361	The parameter C<$family> should best start with the name of the extension
1879	using it, it should be unique.	2362	using it, it should be unique.
1880		2363
1881	=over 4	2364	=over 4
1882		2365
1883	=item $hashref = cf::db_get $family
1884
1885	Return a hashref for use by the extension C<$family>, which can be
1886	modified. After modifications, you have to call C<cf::db_dirty> or
1887	C<cf::db_sync>.
1888
1889	=item $value = cf::db_get $family => $key	2366	=item $value = cf::db_get $family => $key
1890		2367
1891	Returns a single value from the database	2368	Returns a single value from the database.
1892
1893	=item cf::db_put $family => $hashref
1894
1895	Stores the given family hashref into the database. Updates are delayed, if
1896	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1897		2369
1898	=item cf::db_put $family => $key => $value	2370	=item cf::db_put $family => $key => $value
1899		2371
1900	Stores the given C<$value> in the family hash. Updates are delayed, if you	2372	Stores the given C<$value> in the family.
1901	want the data to be synced to disk immediately, use C<cf::db_sync>.
1902
1903	=item cf::db_dirty
1904
1905	Marks the database as dirty, to be updated at a later time.
1906
1907	=item cf::db_sync
1908
1909	Immediately write the database to disk I<if it is dirty>.
1910		2373
1911	=cut	2374	=cut
1912		2375
1913	our $DB;	2376	our $DB;
1914		2377
1915	{	2378	sub db_init {
1916	my $path = cf::localdir . "/database.pst";	2379	unless ($DB) {
		2380	$DB = BDB::db_create $DB_ENV;
1917		2381
1918	sub db_load() {	2382	cf::sync_job {
1919	$DB = stat $path ? Storable::retrieve $path : { };	2383	eval {
1920	}	2384	$DB->set_flags (BDB::CHKSUM);
1921		2385
1922	my $pid;	2386	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
1923		2387	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
1924	sub db_save() {	2388	cf::cleanup "db_open(db): $!" if $!;
1925	waitpid $pid, 0 if $pid;	2389	};
1926	if (0 == ($pid = fork)) {	2390	cf::cleanup "db_open(db): $@" if $@;
1927	$DB->{_meta}{version} = 1;
1928	Storable::nstore $DB, "$path~";
1929	rename "$path~", $path;
1930	cf::_exit 0 if defined $pid;
1931	}	2391	};
1932	}
1933
1934	my $dirty;
1935
1936	sub db_sync() {
1937	db_save if $dirty;
1938	undef $dirty;
1939	}
1940
1941	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1942	db_sync;
1943	});	2392	}
		2393	}
1944		2394
1945	sub db_dirty() {
1946	$dirty = 1;
1947	$idle->start;
1948	}
1949
1950	sub db_get($;$) {	2395	sub db_get($$) {
1951	@_ >= 2	2396	my $key = "$_[0]/$_[1]";
1952	? $DB->{$_[0]}{$_[1]}
1953	: ($DB->{$_[0]} ||= { })
1954	}
1955		2397
		2398	cf::sync_job {
		2399	BDB::db_get $DB, undef, $key, my $data;
		2400
		2401	$! ? ()
		2402	: $data
		2403	}
		2404	}
		2405
1956	sub db_put($$;$) {	2406	sub db_put($$$) {
1957	if (@_ >= 3) {	2407	BDB::dbreq_pri 4;
1958	$DB->{$_[0]}{$_[1]} = $_[2];	2408	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
1959	} else {	2409	}
1960	$DB->{$_[0]} = $_[1];
1961	}
1962	db_dirty;
1963	}
1964		2410
1965	cf::global->attach (	2411	=item cf::cache $id => [$paths...], $processversion => $process
1966	prio => 10000,	2412
1967	on_cleanup => sub {	2413	Generic caching function that returns the value of the resource $id,
1968	db_sync;	2414	caching and regenerating as required.
		2415
		2416	This function can block.
		2417
		2418	=cut
		2419
		2420	sub cache {
		2421	my ($id, $src, $processversion, $process) = @_;
		2422
		2423	my $meta =
		2424	join "\x00",
		2425	$processversion,
		2426	map {
		2427	aio_stat $_
		2428	and Carp::croak "$_: $!";
		2429
		2430	($_, (stat _)[7,9])
		2431	} @$src;
		2432
		2433	my $dbmeta = db_get cache => "$id/meta";
		2434	if ($dbmeta ne $meta) {
		2435	# changed, we may need to process
		2436
		2437	my @data;
		2438	my $md5;
		2439
		2440	for (0 .. $#$src) {
		2441	0 <= aio_load $src->[$_], $data[$_]
		2442	or Carp::croak "$src->[$_]: $!";
1969	},	2443	}
1970	);	2444
		2445	# if processing is expensive, check
		2446	# checksum first
		2447	if (1) {
		2448	$md5 =
		2449	join "\x00",
		2450	$processversion,
		2451	map {
		2452	Coro::cede;
		2453	($src->[$_], Digest::MD5::md5_hex $data[$_])
		2454	} 0.. $#$src;
		2455
		2456
		2457	my $dbmd5 = db_get cache => "$id/md5";
		2458	if ($dbmd5 eq $md5) {
		2459	db_put cache => "$id/meta", $meta;
		2460
		2461	return db_get cache => "$id/data";
		2462	}
		2463	}
		2464
		2465	my $t1 = Time::HiRes::time;
		2466	my $data = $process->(\@data);
		2467	my $t2 = Time::HiRes::time;
		2468
		2469	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		2470
		2471	db_put cache => "$id/data", $data;
		2472	db_put cache => "$id/md5" , $md5;
		2473	db_put cache => "$id/meta", $meta;
		2474
		2475	return $data;
		2476	}
		2477
		2478	db_get cache => "$id/data"
		2479	}
		2480
		2481	=item fork_call { }, $args
		2482
		2483	Executes the given code block with the given arguments in a seperate
		2484	process, returning the results. Everything must be serialisable with
		2485	Coro::Storable. May, of course, block. Note that the executed sub may
		2486	never block itself or use any form of Event handling.
		2487
		2488	=cut
		2489
		2490	sub fork_call(&@) {
		2491	my ($cb, @args) = @_;
		2492
		2493	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		2494	# or die "socketpair: $!";
		2495	pipe my $fh1, my $fh2
		2496	or die "pipe: $!";
		2497
		2498	if (my $pid = fork) {
		2499	close $fh2;
		2500
		2501	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
		2502	$res = Coro::Storable::thaw $res;
		2503
		2504	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		2505
		2506	die $$res unless "ARRAY" eq ref $res;
		2507
		2508	return wantarray ? @$res : $res->[-1];
		2509	} else {
		2510	reset_signals;
		2511	local $SIG{__WARN__};
		2512	local $SIG{__DIE__};
		2513	eval {
		2514	close $fh1;
		2515
		2516	my @res = eval { $cb->(@args) };
		2517	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
		2518	};
		2519
		2520	warn $@ if $@;
		2521	_exit 0;
		2522	}
1971	}	2523	}
1972		2524
1973	#############################################################################	2525	#############################################################################
1974	# the server's main()	2526	# the server's init and main functions
		2527
		2528	sub load_facedata($) {
		2529	my ($path) = @_;
		2530
		2531	warn "loading facedata from $path\n";
		2532
		2533	my $facedata;
		2534	0 < aio_load $path, $facedata
		2535	or die "$path: $!";
		2536
		2537	$facedata = Coro::Storable::thaw $facedata;
		2538
		2539	$facedata->{version} == 2
		2540	or cf::cleanup "$path: version mismatch, cannot proceed.";
		2541
		2542	{
		2543	my $faces = $facedata->{faceinfo};
		2544
		2545	while (my ($face, $info) = each %$faces) {
		2546	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		2547	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
		2548	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2549	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
		2550	Coro::cede;
		2551	}
		2552
		2553	while (my ($face, $info) = each %$faces) {
		2554	next unless $info->{smooth};
		2555	my $idx = cf::face::find $face
		2556	or next;
		2557	if (my $smooth = cf::face::find $info->{smooth}) {
		2558	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2559	} else {
		2560	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2561	}
		2562	Coro::cede;
		2563	}
		2564	}
		2565
		2566	{
		2567	my $anims = $facedata->{animinfo};
		2568
		2569	while (my ($anim, $info) = each %$anims) {
		2570	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2571	Coro::cede;
		2572	}
		2573
		2574	cf::anim::invalidate_all; # d'oh
		2575	}
		2576
		2577	1
		2578	}
		2579
		2580	sub reload_regions {
		2581	load_resource_file "$MAPDIR/regions"
		2582	or die "unable to load regions file\n";
		2583	}
		2584
		2585	sub reload_facedata {
		2586	load_facedata "$DATADIR/facedata"
		2587	or die "unable to load facedata\n";
		2588	}
		2589
		2590	sub reload_archetypes {
		2591	load_resource_file "$DATADIR/archetypes"
		2592	or die "unable to load archetypes\n";
		2593	}
		2594
		2595	sub reload_treasures {
		2596	load_resource_file "$DATADIR/treasures"
		2597	or die "unable to load treasurelists\n";
		2598	}
		2599
		2600	sub reload_resources {
		2601	warn "reloading resource files...\n";
		2602
		2603	reload_regions;
		2604	reload_facedata;
		2605	#reload_archetypes;#d#
		2606	reload_archetypes;
		2607	reload_treasures;
		2608
		2609	warn "finished reloading resource files\n";
		2610	}
		2611
		2612	sub init {
		2613	reload_resources;
		2614	}
1975		2615
1976	sub cfg_load {	2616	sub cfg_load {
1977	open my $fh, "<:utf8", cf::confdir . "/config"	2617	open my $fh, "<:utf8", "$CONFDIR/config"
1978	or return;	2618	or return;
1979		2619
1980	local $/;	2620	local $/;
1981	*CFG = YAML::Syck::Load <$fh>;	2621	*CFG = YAML::Syck::Load <$fh>;
1982		2622
1983	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	2623	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
1984		2624
		2625	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2626	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2627
1985	if (exists $CFG{mlockall}) {	2628	if (exists $CFG{mlockall}) {
1986	eval {	2629	eval {
1987	$CFG{mlockall} ? &mlockall : &munlockall	2630	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
1988	and die "WARNING: m(un)lockall failed: $!\n";	2631	and die "WARNING: m(un)lockall failed: $!\n";
1989	};	2632	};
1990	warn $@ if $@;	2633	warn $@ if $@;
1991	}	2634	}
1992	}	2635	}
1993		2636
1994	sub main {	2637	sub main {
1995	# we must not ever block the main coroutine	2638	# we must not ever block the main coroutine
1996	local $Coro::idle = sub {	2639	local $Coro::idle = sub {
1997	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	2640	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1998	(Coro::unblock_sub {	2641	(async {
1999	Event::one_event;	2642	Event::one_event;
2000	})->();	2643	})->prio (Coro::PRIO_MAX);
2001	};	2644	};
2002		2645
2003	cfg_load;	2646	cfg_load;
2004	db_load;	2647	db_init;
2005	load_extensions;	2648	load_extensions;
		2649
		2650	$TICK_WATCHER->start;
2006	Event::loop;	2651	Event::loop;
2007	}	2652	}
2008		2653
2009	#############################################################################	2654	#############################################################################
2010	# initialisation	2655	# initialisation and cleanup
2011		2656
		2657	# install some emergency cleanup handlers
		2658	BEGIN {
		2659	for my $signal (qw(INT HUP TERM)) {
		2660	Event->signal (
		2661	reentrant => 0,
		2662	data => WF_AUTOCANCEL,
		2663	signal => $signal,
		2664	prio => 0,
		2665	cb => sub {
		2666	cf::cleanup "SIG$signal";
		2667	},
		2668	);
		2669	}
		2670	}
		2671
		2672	sub emergency_save() {
		2673	my $freeze_guard = cf::freeze_mainloop;
		2674
		2675	warn "enter emergency perl save\n";
		2676
		2677	cf::sync_job {
		2678	# use a peculiar iteration method to avoid tripping on perl
		2679	# refcount bugs in for. also avoids problems with players
		2680	# and maps saved/destroyed asynchronously.
		2681	warn "begin emergency player save\n";
		2682	for my $login (keys %cf::PLAYER) {
		2683	my $pl = $cf::PLAYER{$login} or next;
		2684	$pl->valid or next;
		2685	$pl->save;
		2686	}
		2687	warn "end emergency player save\n";
		2688
		2689	warn "begin emergency map save\n";
		2690	for my $path (keys %cf::MAP) {
		2691	my $map = $cf::MAP{$path} or next;
		2692	$map->valid or next;
		2693	$map->save;
		2694	}
		2695	warn "end emergency map save\n";
		2696
		2697	warn "begin emergency database checkpoint\n";
		2698	BDB::db_env_txn_checkpoint $DB_ENV;
		2699	warn "end emergency database checkpoint\n";
		2700	};
		2701
		2702	warn "leave emergency perl save\n";
		2703	}
		2704
		2705	sub post_cleanup {
		2706	my ($make_core) = @_;
		2707
		2708	warn Carp::longmess "post_cleanup backtrace"
		2709	if $make_core;
		2710	}
		2711
2012	sub reload() {	2712	sub do_reload_perl() {
2013	# can/must only be called in main	2713	# can/must only be called in main
2014	if ($Coro::current != $Coro::main) {	2714	if ($Coro::current != $Coro::main) {
2015	warn "can only reload from main coroutine\n";	2715	warn "can only reload from main coroutine";
2016	return;	2716	return;
2017	}	2717	}
2018		2718
2019	warn "reloading...";	2719	warn "reloading...";
2020		2720
2021	my $guard = freeze_mainloop;	2721	warn "entering sync_job";
		2722
		2723	cf::sync_job {
		2724	cf::write_runtime; # external watchdog should not bark
2022	cf::emergency_save;	2725	cf::emergency_save;
		2726	cf::write_runtime; # external watchdog should not bark
2023		2727
2024	eval {	2728	warn "syncing database to disk";
		2729	BDB::db_env_txn_checkpoint $DB_ENV;
		2730
2025	# if anything goes wrong in here, we should simply crash as we already saved	2731	# if anything goes wrong in here, we should simply crash as we already saved
2026		2732
2027	# cancel all watchers	2733	warn "cancelling all WF_AUTOCANCEL watchers";
2028	for (Event::all_watchers) {	2734	for (Event::all_watchers) {
2029	$_->cancel if $_->data & WF_AUTOCANCEL;	2735	$_->cancel if $_->data & WF_AUTOCANCEL;
2030	}	2736	}
2031		2737
		2738	warn "flushing outstanding aio requests";
		2739	for (;;) {
		2740	BDB::flush;
		2741	IO::AIO::flush;
		2742	Coro::cede;
		2743	last unless IO::AIO::nreqs || BDB::nreqs;
		2744	warn "iterate...";
		2745	}
		2746
		2747	++$RELOAD;
		2748
2032	# cancel all extension coros	2749	warn "cancelling all extension coros";
2033	$_->cancel for values %EXT_CORO;	2750	$_->cancel for values %EXT_CORO;
2034	%EXT_CORO = ();	2751	%EXT_CORO = ();
2035		2752
2036	# unload all extensions	2753	warn "removing commands";
2037	for (@exts) {	2754	%COMMAND = ();
		2755
		2756	warn "removing ext commands";
		2757	%EXTCMD = ();
		2758
		2759	warn "unloading/nuking all extensions";
		2760	for my $pkg (@EXTS) {
2038	warn "unloading <$_>";	2761	warn "... unloading $pkg";
2039	unload_extension $_;	2762
		2763	if (my $cb = $pkg->can ("unload")) {
		2764	eval {
		2765	$cb->($pkg);
		2766	1
		2767	} or warn "$pkg unloaded, but with errors: $@";
2040	}	2768	}
2041		2769
		2770	warn "... nuking $pkg";
		2771	Symbol::delete_package $pkg;
		2772	}
		2773
2042	# unload all modules loaded from $LIBDIR	2774	warn "unloading all perl modules loaded from $LIBDIR";
2043	while (my ($k, $v) = each %INC) {	2775	while (my ($k, $v) = each %INC) {
2044	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2776	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2045		2777
2046	warn "removing <$k>";	2778	warn "... unloading $k";
2047	delete $INC{$k};	2779	delete $INC{$k};
2048		2780
2049	$k =~ s/\.pm$//;	2781	$k =~ s/\.pm$//;
2050	$k =~ s/\//::/g;	2782	$k =~ s/\//::/g;
2051		2783
…		…
2054	}	2786	}
2055		2787
2056	Symbol::delete_package $k;	2788	Symbol::delete_package $k;
2057	}	2789	}
2058		2790
2059	# sync database to disk
2060	cf::db_sync;
2061	IO::AIO::flush;
2062
2063	# get rid of safe::, as good as possible	2791	warn "getting rid of safe::, as good as possible";
2064	Symbol::delete_package "safe::$_"	2792	Symbol::delete_package "safe::$_"
2065	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2793	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2066		2794
2067	# remove register_script_function callbacks
2068	# TODO
2069
2070	# unload cf.pm "a bit"	2795	warn "unloading cf.pm \"a bit\"";
2071	delete $INC{"cf.pm"};	2796	delete $INC{"cf.pm"};
		2797	delete $INC{"cf/pod.pm"};
2072		2798
2073	# don't, removes xs symbols, too,	2799	# don't, removes xs symbols, too,
2074	# and global variables created in xs	2800	# and global variables created in xs
2075	#Symbol::delete_package __PACKAGE__;	2801	#Symbol::delete_package __PACKAGE__;
2076		2802
2077	# reload cf.pm	2803	warn "unload completed, starting to reload now";
		2804
2078	warn "reloading cf.pm";	2805	warn "reloading cf.pm";
2079	require cf;	2806	require cf;
2080	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2807	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2081		2808
2082	# load config and database again	2809	warn "loading config and database again";
2083	cf::cfg_load;	2810	cf::cfg_load;
2084	cf::db_load;
2085		2811
2086	# load extensions
2087	warn "load extensions";	2812	warn "loading extensions";
2088	cf::load_extensions;	2813	cf::load_extensions;
2089		2814
2090	# reattach attachments to objects	2815	warn "reattaching attachments to objects/players";
2091	warn "reattach";	2816	_global_reattach; # objects, sockets
2092	_global_reattach;	2817	warn "reattaching attachments to maps";
2093	};	2818	reattach $_ for values %MAP;
		2819	warn "reattaching attachments to players";
		2820	reattach $_ for values %PLAYER;
2094		2821
2095	if ($@) {	2822	warn "leaving sync_job";
		2823
		2824	1
		2825	} or do {
2096	warn $@;	2826	warn $@;
2097	warn "error while reloading, exiting.";	2827	warn "error while reloading, exiting.";
2098	exit 1;	2828	exit 1;
2099	}	2829	};
2100		2830
2101	warn "reloaded successfully";	2831	warn "reloaded";
2102	};	2832	};
2103		2833
2104	#############################################################################	2834	our $RELOAD_WATCHER; # used only during reload
2105		2835
2106	unless ($LINK_MAP) {	2836	sub reload_perl() {
2107	$LINK_MAP = cf::map::new;	2837	# doing reload synchronously and two reloads happen back-to-back,
		2838	# coro crashes during coro_state_free->destroy here.
2108		2839
2109	$LINK_MAP->width (41);	2840	$RELOAD_WATCHER ||= Event->timer (
2110	$LINK_MAP->height (41);	2841	reentrant => 0,
2111	$LINK_MAP->alloc;
2112	$LINK_MAP->path ("{link}");
2113	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2114	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2115
2116	# dirty hack because... archetypes are not yet loaded
2117	Event->timer (
2118	after => 2,	2842	after => 0,
		2843	data => WF_AUTOCANCEL,
2119	cb => sub {	2844	cb => sub {
2120	$_[0]->w->cancel;	2845	do_reload_perl;
2121		2846	undef $RELOAD_WATCHER;
2122	# provide some exits "home"
2123	my $exit = cf::object::new "exit";
2124
2125	$exit->slaying ($EMERGENCY_POSITION->[0]);
2126	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2127	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2128
2129	$LINK_MAP->insert ($exit->clone, 19, 19);
2130	$LINK_MAP->insert ($exit->clone, 19, 20);
2131	$LINK_MAP->insert ($exit->clone, 19, 21);
2132	$LINK_MAP->insert ($exit->clone, 20, 19);
2133	$LINK_MAP->insert ($exit->clone, 20, 21);
2134	$LINK_MAP->insert ($exit->clone, 21, 19);
2135	$LINK_MAP->insert ($exit->clone, 21, 20);
2136	$LINK_MAP->insert ($exit->clone, 21, 21);
2137
2138	$exit->destroy;
2139	});	2847	},
2140		2848	);
2141	$LINK_MAP->{deny_save} = 1;
2142	$LINK_MAP->{deny_reset} = 1;
2143
2144	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2145	}	2849	}
2146
2147	register "<global>", __PACKAGE__;
2148		2850
2149	register_command "reload" => sub {	2851	register_command "reload" => sub {
2150	my ($who, $arg) = @_;	2852	my ($who, $arg) = @_;
2151		2853
2152	if ($who->flag (FLAG_WIZ)) {	2854	if ($who->flag (FLAG_WIZ)) {
2153	$who->message ("start of reload.");
2154	reload;
2155	$who->message ("end of reload.");	2855	$who->message ("reloading server.");
		2856	async { reload_perl };
2156	}	2857	}
2157	};	2858	};
2158		2859
2159	unshift @INC, $LIBDIR;	2860	unshift @INC, $LIBDIR;
2160		2861
		2862	my $bug_warning = 0;
		2863
		2864	our @WAIT_FOR_TICK;
		2865	our @WAIT_FOR_TICK_BEGIN;
		2866
		2867	sub wait_for_tick {
		2868	return unless $TICK_WATCHER->is_active;
		2869	return if $Coro::current == $Coro::main;
		2870
		2871	my $signal = new Coro::Signal;
		2872	push @WAIT_FOR_TICK, $signal;
		2873	$signal->wait;
		2874	}
		2875
		2876	sub wait_for_tick_begin {
		2877	return unless $TICK_WATCHER->is_active;
		2878	return if $Coro::current == $Coro::main;
		2879
		2880	my $signal = new Coro::Signal;
		2881	push @WAIT_FOR_TICK_BEGIN, $signal;
		2882	$signal->wait;
		2883	}
		2884
		2885	my $min = 1e6;#d#
		2886	my $avg = 10;
2161	$TICK_WATCHER = Event->timer (	2887	$TICK_WATCHER = Event->timer (
2162	reentrant => 0,	2888	reentrant => 0,
		2889	parked => 1,
2163	prio => 0,	2890	prio => 0,
2164	at => $NEXT_TICK || $TICK,	2891	at => $NEXT_TICK || $TICK,
2165	data => WF_AUTOCANCEL,	2892	data => WF_AUTOCANCEL,
2166	cb => sub {	2893	cb => sub {
		2894	if ($Coro::current != $Coro::main) {
		2895	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2896	unless ++$bug_warning > 10;
		2897	return;
		2898	}
		2899
		2900	$NOW = $tick_start = Event::time;
		2901
2167	cf::server_tick; # one server iteration	2902	cf::server_tick; # one server iteration
		2903
		2904	0 && sync_job {#d#
		2905	for(1..10) {
		2906	my $t = Event::time;
		2907	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		2908	or die;
		2909
		2910	$map->width (50);
		2911	$map->height (50);
		2912	$map->alloc;
		2913	$map->_load_objects ("/tmp/x.map", 1);
		2914	my $t = Event::time - $t;
		2915
		2916	#next unless $t < 0.0013;#d#
		2917	if ($t < $min) {
		2918	$min = $t;
		2919	}
		2920	$avg = $avg * 0.99 + $t * 0.01;
		2921	}
		2922	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		2923	exit 0;
		2924	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
		2925	};
		2926
2168	$RUNTIME += $TICK;	2927	$RUNTIME += $TICK;
2169	$NEXT_TICK += $TICK;	2928	$NEXT_TICK += $TICK;
2170		2929
		2930	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		2931	$NEXT_RUNTIME_WRITE = $NOW + 10;
		2932	Coro::async_pool {
		2933	write_runtime
		2934	or warn "ERROR: unable to write runtime file: $!";
		2935	};
		2936	}
		2937
		2938	# my $AFTER = Event::time;
		2939	# warn $AFTER - $NOW;#d#
		2940
		2941	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		2942	$sig->send;
		2943	}
		2944	while (my $sig = shift @WAIT_FOR_TICK) {
		2945	$sig->send;
		2946	}
		2947
		2948	$NOW = Event::time;
		2949
2171	# if we are delayed by four ticks or more, skip them all	2950	# if we are delayed by four ticks or more, skip them all
2172	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2951	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2173		2952
2174	$TICK_WATCHER->at ($NEXT_TICK);	2953	$TICK_WATCHER->at ($NEXT_TICK);
2175	$TICK_WATCHER->start;	2954	$TICK_WATCHER->start;
		2955
		2956	$LOAD = ($NOW - $tick_start) / $TICK;
		2957	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		2958
		2959	_post_tick;
		2960
		2961
2176	},	2962	},
2177	);	2963	);
2178		2964
		2965	{
2179	IO::AIO::max_poll_time $TICK * 0.2;	2966	BDB::max_poll_time $TICK * 0.1;
2180		2967	$BDB_POLL_WATCHER = Event->io (
2181	Event->io (	2968	reentrant => 0,
2182	fd => IO::AIO::poll_fileno,	2969	fd => BDB::poll_fileno,
2183	poll => 'r',	2970	poll => 'r',
2184	prio => 5,	2971	prio => 0,
2185	data => WF_AUTOCANCEL,
2186	cb => \&IO::AIO::poll_cb,
2187	);
2188
2189	Event->timer (
2190	data => WF_AUTOCANCEL,	2972	data => WF_AUTOCANCEL,
2191	after => 0,	2973	cb => \&BDB::poll_cb,
2192	interval => 10,	2974	);
2193	cb => sub {	2975	BDB::min_parallel 8;
2194	(Coro::unblock_sub {	2976
2195	write_runtime	2977	BDB::set_sync_prepare {
2196	or warn "ERROR: unable to write runtime file: $!";	2978	my $status;
		2979	my $current = $Coro::current;
		2980	(
		2981	sub {
		2982	$status = $!;
		2983	$current->ready; undef $current;
		2984	},
		2985	sub {
		2986	Coro::schedule while defined $current;
		2987	$! = $status;
		2988	},
		2989	)
		2990	};
		2991
		2992	unless ($DB_ENV) {
		2993	$DB_ENV = BDB::db_env_create;
		2994
		2995	cf::sync_job {
		2996	eval {
		2997	BDB::db_env_open
		2998	$DB_ENV,
		2999	$BDBDIR,
		3000	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3001	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3002	0666;
		3003
		3004	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3005
		3006	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		3007	$DB_ENV->set_lk_detect;
		3008	};
		3009
		3010	cf::cleanup "db_env_open(db): $@" if $@;
2197	})->();	3011	};
2198	},	3012	}
2199	);	3013	}
		3014
		3015	{
		3016	IO::AIO::min_parallel 8;
		3017
		3018	undef $Coro::AIO::WATCHER;
		3019	IO::AIO::max_poll_time $TICK * 0.1;
		3020	$AIO_POLL_WATCHER = Event->io (
		3021	reentrant => 0,
		3022	data => WF_AUTOCANCEL,
		3023	fd => IO::AIO::poll_fileno,
		3024	poll => 'r',
		3025	prio => 6,
		3026	cb => \&IO::AIO::poll_cb,
		3027	);
		3028	}
		3029
		3030	my $_log_backtrace;
		3031
		3032	sub _log_backtrace {
		3033	my ($msg, @addr) = @_;
		3034
		3035	$msg =~ s/\n//;
		3036
		3037	# limit the # of concurrent backtraces
		3038	if ($_log_backtrace < 2) {
		3039	++$_log_backtrace;
		3040	async {
		3041	my @bt = fork_call {
		3042	@addr = map { sprintf "%x", $_ } @addr;
		3043	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3044	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3045	or die "addr2line: $!";
		3046
		3047	my @funcs;
		3048	my @res = <$fh>;
		3049	chomp for @res;
		3050	while (@res) {
		3051	my ($func, $line) = splice @res, 0, 2, ();
		3052	push @funcs, "[$func] $line";
		3053	}
		3054
		3055	@funcs
		3056	};
		3057
		3058	LOG llevInfo, "[ABT] $msg\n";
		3059	LOG llevInfo, "[ABT] $_\n" for @bt;
		3060	--$_log_backtrace;
		3061	};
		3062	} else {
		3063	LOG llevInfo, "[ABT] $msg\n";
		3064	LOG llevInfo, "[ABT] [suppressed]\n";
		3065	}
		3066	}
		3067
		3068	# load additional modules
		3069	use cf::pod;
2200		3070
2201	END { cf::emergency_save }	3071	END { cf::emergency_save }
2202		3072
2203	1	3073	1
2204		3074

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