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Comparing cf.schmorp.de/server/lib/cf.pm (file contents):
Revision 1.137 by root, Fri Jan 5 10:23:05 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
226	=item cf::async { BLOCK }	295	sub lock_active($) {
227
228	Like C<Coro::async>, but runs the given BLOCK in an eval and only logs the
229	error instead of exiting the server in case of a problem.
230
231	=cut
232
233	sub async(&) {
234	my ($cb) = @_;	296	my ($key) = @_;
235		297
236	Coro::async {	298	! ! $LOCK{$key}
237	eval { $cb->() };
238	warn $@ if $@;
239	}
240	}	299	}
241		300
242	sub freeze_mainloop {	301	sub freeze_mainloop {
243	return unless $TICK_WATCHER->is_active;	302	return unless $TICK_WATCHER->is_active;
244		303
245	my $guard = Coro::guard { $TICK_WATCHER->start };	304	my $guard = Coro::guard {
		305	$TICK_WATCHER->start;
		306	};
246	$TICK_WATCHER->stop;	307	$TICK_WATCHER->stop;
247	$guard	308	$guard
248	}	309	}
		310
		311	=item cf::async { BLOCK }
		312
		313	Currently the same as Coro::async_pool, meaning you cannot use
		314	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		315	thing you are allowed to do is call C<prio> on it.
		316
		317	=cut
		318
		319	BEGIN { *async = \&Coro::async_pool }
249		320
250	=item cf::sync_job { BLOCK }	321	=item cf::sync_job { BLOCK }
251		322
252	The design of crossfire+ requires that the main coro ($Coro::main) is	323	The design of crossfire+ requires that the main coro ($Coro::main) is
253	always able to handle events or runnable, as crossfire+ is only partly	324	always able to handle events or runnable, as crossfire+ is only partly
…		…
262		333
263	sub sync_job(&) {	334	sub sync_job(&) {
264	my ($job) = @_;	335	my ($job) = @_;
265		336
266	if ($Coro::current == $Coro::main) {	337	if ($Coro::current == $Coro::main) {
		338	my $time = Event::time;
		339
267	# this is the main coro, too bad, we have to block	340	# this is the main coro, too bad, we have to block
268	# till the operation succeeds, freezing the server :/	341	# till the operation succeeds, freezing the server :/
269		342
270	# TODO: use suspend/resume instead	343	# TODO: use suspend/resume instead
271	# (but this is cancel-safe)	344	# (but this is cancel-safe)
272	my $freeze_guard = freeze_mainloop;	345	my $freeze_guard = freeze_mainloop;
273		346
274	my $busy = 1;	347	my $busy = 1;
275	my @res;	348	my @res;
276		349
277	(Coro::async {	350	(async {
278	@res = eval { $job->() };	351	@res = eval { $job->() };
279	warn $@ if $@;	352	warn $@ if $@;
280	undef $busy;	353	undef $busy;
281	})->prio (Coro::PRIO_MAX);	354	})->prio (Coro::PRIO_MAX);
282		355
283	while ($busy) {	356	while ($busy) {
284	Coro::cede_notself;	357	Coro::cede or Event::one_event;
285	Event::one_event unless Coro::nready;
286	}	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
287		366
288	wantarray ? @res : $res[0]	367	wantarray ? @res : $res[0]
289	} else {	368	} else {
290	# we are in another coroutine, how wonderful, everything just works	369	# we are in another coroutine, how wonderful, everything just works
291		370
292	$job->()	371	$job->()
293	}	372	}
294	}	373	}
295		374
296	=item $coro = cf::coro { BLOCK }	375	=item $coro = cf::async_ext { BLOCK }
297		376
298	Creates and returns a new coro. This coro is automcatially being canceled	377	Like async, but this coro is automatically being canceled when the
299	when the extension calling this is being unloaded.	378	extension calling this is being unloaded.
300		379
301	=cut	380	=cut
302		381
303	sub coro(&) {	382	sub async_ext(&) {
304	my $cb = shift;	383	my $cb = shift;
305		384
306	my $coro = &cf::async ($cb);	385	my $coro = &Coro::async ($cb);
307		386
308	$coro->on_destroy (sub {	387	$coro->on_destroy (sub {
309	delete $EXT_CORO{$coro+0};	388	delete $EXT_CORO{$coro+0};
310	});	389	});
311	$EXT_CORO{$coro+0} = $coro;	390	$EXT_CORO{$coro+0} = $coro;
312		391
313	$coro	392	$coro
314	}	393	}
315		394
316	sub write_runtime {	395	sub write_runtime {
317	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";
318		404
319	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	405	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
320	or return;	406	or return;
321		407
		408	my $value = $cf::RUNTIME + 90 + 10;
322	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
323	(aio_write $fh, 0, (length $value), $value, 0) <= 0	412	(aio_write $fh, 0, (length $value), $value, 0) <= 0
324	and return;	413	and return;
325		414
		415	# always fsync - this file is important
326	aio_fsync $fh	416	aio_fsync $fh
327	and return;	417	and return;
328		418
		419	# touch it again to show we are up-to-date
		420	aio_utime $fh, undef, undef;
		421
329	close $fh	422	close $fh
330	or return;	423	or return;
331		424
332	aio_rename "$runtime~", $runtime	425	aio_rename "$runtime~", $runtime
333	and return;	426	and return;
334		427
		428	warn "runtime file written.\n";
		429
335	1	430	1
336	}	431	}
337		432
		433	=item cf::datalog type => key => value, ...
		434
		435	Log a datalog packet of the given type with the given key-value pairs.
		436
		437	=cut
		438
		439	sub datalog($@) {
		440	my ($type, %kv) = @_;
		441	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
		442	}
		443
338	=back	444	=back
339		445
340	=cut	446	=cut
341
342	#############################################################################
343
344	package cf::path;
345
346	sub new {
347	my ($class, $path, $base) = @_;
348
349	$path = $path->as_string if ref $path;
350
351	my $self = bless { }, $class;
352
353	# {... are special paths that are not touched
354	# ?xxx/... are special absolute paths
355	# ?random/... random maps
356	# /! non-realised random map exit
357	# /... normal maps
358	# ~/... per-player maps without a specific player (DO NOT USE)
359	# ~user/... per-player map of a specific user
360
361	if ($path =~ /^{/) {
362	# fine as it is
363	} elsif ($path =~ s{^\?random/}{}) {
364	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
365	$self->{random} = cf::from_json $data;
366	} else {
367	if ($path =~ s{^~([^/]+)?}{}) {
368	$self->{user_rel} = 1;
369
370	if (defined $1) {
371	$self->{user} = $1;
372	} elsif ($base =~ m{^~([^/]+)/}) {
373	$self->{user} = $1;
374	} else {
375	warn "cannot resolve user-relative path without user <$path,$base>\n";
376	}
377	} elsif ($path =~ /^\//) {
378	# already absolute
379	} else {
380	$base =~ s{[^/]+/?$}{};
381	return $class->new ("$base/$path");
382	}
383
384	for ($path) {
385	redo if s{/\.?/}{/};
386	redo if s{/[^/]+/\.\./}{/};
387	}
388	}
389
390	$self->{path} = $path;
391
392	$self
393	}
394
395	# the name / primary key / in-game path
396	sub as_string {
397	my ($self) = @_;
398
399	$self->{user_rel} ? "~$self->{user}$self->{path}"
400	: $self->{random} ? "?random/$self->{path}"
401	: $self->{path}
402	}
403
404	# the displayed name, this is a one way mapping
405	sub visible_name {
406	my ($self) = @_;
407
408	# if (my $rmp = $self->{random}) {
409	# # todo: be more intelligent about this
410	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
411	# } else {
412	$self->as_string
413	# }
414	}
415
416	# escape the /'s in the path
417	sub _escaped_path {
418	# ∕ is U+2215
419	(my $path = $_[0]{path}) =~ s/\//∕/g;
420	$path
421	}
422
423	# the original (read-only) location
424	sub load_path {
425	my ($self) = @_;
426
427	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
428	}
429
430	# the temporary/swap location
431	sub save_path {
432	my ($self) = @_;
433
434	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
435	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
436	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
437	}
438
439	# the unique path, might be eq to save_path
440	sub uniq_path {
441	my ($self) = @_;
442
443	$self->{user_rel} || $self->{random}
444	? undef
445	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
446	}
447
448	# return random map parameters, or undef
449	sub random_map_params {
450	my ($self) = @_;
451
452	$self->{random}
453	}
454
455	# this is somewhat ugly, but style maps do need special treatment
456	sub is_style_map {
457	$_[0]{path} =~ m{^/styles/}
458	}
459
460	package cf;
461		447
462	#############################################################################	448	#############################################################################
463		449
464	=head2 ATTACHABLE OBJECTS	450	=head2 ATTACHABLE OBJECTS
465		451
…		…
591	our @CB_TYPE = (); # registry for type (cf-object class) based events	577	our @CB_TYPE = (); # registry for type (cf-object class) based events
592	our @CB_MAP = ();	578	our @CB_MAP = ();
593		579
594	my %attachment;	580	my %attachment;
595		581
		582	sub cf::attachable::thawer_merge {
		583	# simply override everything except _meta
		584	local $_[0]{_meta};
		585	%{$_[0]} = %{$_[1]};
		586	}
		587
596	sub _attach_cb($$$$) {	588	sub _attach_cb($$$$) {
597	my ($registry, $event, $prio, $cb) = @_;	589	my ($registry, $event, $prio, $cb) = @_;
598		590
599	use sort 'stable';	591	use sort 'stable';
600		592
…		…
634	$registry = $CB_TYPE[$object_type] ||= [];	626	$registry = $CB_TYPE[$object_type] ||= [];
635		627
636	} elsif ($type eq "subtype") {	628	} elsif ($type eq "subtype") {
637	defined $object_type or Carp::croak "subtype specified without type";	629	defined $object_type or Carp::croak "subtype specified without type";
638	my $object_subtype = shift @arg;	630	my $object_subtype = shift @arg;
639	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	631	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
640		632
641	} elsif ($type eq "package") {	633	} elsif ($type eq "package") {
642	my $pkg = shift @arg;	634	my $pkg = shift @arg;
643		635
644	while (my ($name, $id) = each %cb_id) {	636	while (my ($name, $id) = each %cb_id) {
…		…
685	if (ref $_[0]) {	677	if (ref $_[0]) {
686	_object_attach @_;	678	_object_attach @_;
687	} else {	679	} else {
688	_attach shift->_attach_registry, @_;	680	_attach shift->_attach_registry, @_;
689	}	681	}
		682	_recalc_want;
690	};	683	};
691		684
692	# all those should be optimised	685	# all those should be optimised
693	sub cf::attachable::detach {	686	sub cf::attachable::detach {
694	my ($obj, $name) = @_;	687	my ($obj, $name) = @_;
…		…
697	delete $obj->{_attachment}{$name};	690	delete $obj->{_attachment}{$name};
698	reattach ($obj);	691	reattach ($obj);
699	} else {	692	} else {
700	Carp::croak "cannot, currently, detach class attachments";	693	Carp::croak "cannot, currently, detach class attachments";
701	}	694	}
		695	_recalc_want;
702	};	696	};
703		697
704	sub cf::attachable::attached {	698	sub cf::attachable::attached {
705	my ($obj, $name) = @_;	699	my ($obj, $name) = @_;
706		700
…		…
771	# object support	765	# object support
772		766
773	sub reattach {	767	sub reattach {
774	# basically do the same as instantiate, without calling instantiate	768	# basically do the same as instantiate, without calling instantiate
775	my ($obj) = @_;	769	my ($obj) = @_;
		770
		771	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
776		772
777	my $registry = $obj->registry;	773	my $registry = $obj->registry;
778		774
779	@$registry = ();	775	@$registry = ();
780		776
…		…
827	$filename, length $$rdata, scalar @$objs;	823	$filename, length $$rdata, scalar @$objs;
828		824
829	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	825	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
830	chmod SAVE_MODE, $fh;	826	chmod SAVE_MODE, $fh;
831	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	827	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
832	aio_fsync $fh;	828	aio_fsync $fh if $cf::USE_FSYNC;
833	close $fh;	829	close $fh;
834		830
835	if (@$objs) {	831	if (@$objs) {
836	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) {
837	chmod SAVE_MODE, $fh;	833	chmod SAVE_MODE, $fh;
838	my $data = Storable::nfreeze { version => 1, objs => $objs };	834	my $data = Storable::nfreeze { version => 1, objs => $objs };
839	aio_write $fh, 0, (length $data), $data, 0;	835	aio_write $fh, 0, (length $data), $data, 0;
840	aio_fsync $fh;	836	aio_fsync $fh if $cf::USE_FSYNC;
841	close $fh;	837	close $fh;
842	aio_rename "$filename.pst~", "$filename.pst";	838	aio_rename "$filename.pst~", "$filename.pst";
843	}	839	}
844	} else {	840	} else {
845	aio_unlink "$filename.pst";	841	aio_unlink "$filename.pst";
…		…
877	or return;	873	or return;
878	$av = eval { (Storable::thaw $av)->{objs} };	874	$av = eval { (Storable::thaw $av)->{objs} };
879	}	875	}
880		876
881	warn sprintf "loading %s (%d)\n",	877	warn sprintf "loading %s (%d)\n",
882	$filename, length $data, scalar @{$av || []};#d#	878	$filename, length $data, scalar @{$av || []};
883	return ($data, $av);	879	return ($data, $av);
884	}	880	}
885		881
886	#############################################################################	882	#############################################################################
887	# command handling &c	883	# command handling &c
…		…
912	=cut	908	=cut
913		909
914	sub register_extcmd {	910	sub register_extcmd {
915	my ($name, $cb) = @_;	911	my ($name, $cb) = @_;
916		912
917	my $caller = caller;
918	#warn "registering extcmd '$name' to '$caller'";
919
920	$EXTCMD{$name} = [$cb, $caller];	913	$EXTCMD{$name} = $cb;
921	}	914	}
922		915
923	cf::player->attach (	916	cf::player->attach (
924	on_command => sub {	917	on_command => sub {
925	my ($pl, $name, $params) = @_;	918	my ($pl, $name, $params) = @_;
…		…
938		931
939	my $msg = eval { from_json $buf };	932	my $msg = eval { from_json $buf };
940		933
941	if (ref $msg) {	934	if (ref $msg) {
942	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	935	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
943	if (my %reply = $cb->[0]->($pl, $msg)) {	936	if (my %reply = $cb->($pl, $msg)) {
944	$pl->ext_reply ($msg->{msgid}, %reply);	937	$pl->ext_reply ($msg->{msgid}, %reply);
945	}	938	}
946	}	939	}
947	} else {	940	} else {
948	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	941	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
950		943
951	cf::override;	944	cf::override;
952	},	945	},
953	);	946	);
954		947
955	sub register {
956	my ($base, $pkg) = @_;
957
958	#TODO
959	}
960
961	sub load_extension {	948	sub load_extension {
962	my ($path) = @_;	949	my ($path) = @_;
963		950
964	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	951	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
965	my $base = $1;	952	my $base = $1;
966	my $pkg = $1;	953	my $pkg = $1;
967	$pkg =~ s/[^[:word:]]/_/g;	954	$pkg =~ s/[^[:word:]]/_/g;
968	$pkg = "ext::$pkg";	955	$pkg = "ext::$pkg";
969		956
970	warn "loading '$path' into '$pkg'\n";	957	warn "... loading '$path' into '$pkg'\n";
971		958
972	open my $fh, "<:utf8", $path	959	open my $fh, "<:utf8", $path
973	or die "$path: $!";	960	or die "$path: $!";
974		961
975	my $source =	962	my $source =
976	"package $pkg; use strict; use utf8;\n"	963	"package $pkg; use strict; use utf8;\n"
977	. "#line 1 \"$path\"\n{\n"	964	. "#line 1 \"$path\"\n{\n"
978	. (do { local $/; <$fh> })	965	. (do { local $/; <$fh> })
979	. "\n};\n1";	966	. "\n};\n1";
980		967
981	eval $source	968	unless (eval $source) {
982	or die $@ ? "$path: $@\n"	969	my $msg = $@ ? "$path: $@\n"
983	: "extension disabled.\n";	970	: "extension disabled.\n";
984		971	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
985	push @exts, $pkg;	972	warn $@;
986	$ext_pkg{$base} = $pkg;	973	warn "mandatory extension failed to load, exiting.\n";
987		974	exit 1;
988	# no strict 'refs';	975	}
989	# @{"$pkg\::ISA"} = ext::;	976	die $@;
990
991	register $base, $pkg;
992	}
993
994	sub unload_extension {
995	my ($pkg) = @_;
996
997	warn "removing extension $pkg\n";
998
999	# remove hooks
1000	#TODO
1001	# for my $idx (0 .. $#PLUGIN_EVENT) {
1002	# delete $hook[$idx]{$pkg};
1003	# }	977	}
1004		978
1005	# remove commands	979	push @EXTS, $pkg;
1006	for my $name (keys %COMMAND) {
1007	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1008
1009	if (@cb) {
1010	$COMMAND{$name} = \@cb;
1011	} else {
1012	delete $COMMAND{$name};
1013	}
1014	}
1015
1016	# remove extcmds
1017	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1018	delete $EXTCMD{$name};
1019	}
1020
1021	if (my $cb = $pkg->can ("unload")) {
1022	eval {
1023	$cb->($pkg);
1024	1
1025	} or warn "$pkg unloaded, but with errors: $@";
1026	}
1027
1028	Symbol::delete_package $pkg;
1029	}	980	}
1030		981
1031	sub load_extensions {	982	sub load_extensions {
1032	for my $ext (<$LIBDIR/*.ext>) {	983	for my $ext (<$LIBDIR/*.ext>) {
1033	next unless -r $ext;	984	next unless -r $ext;
…		…
1037	} or warn "$ext not loaded: $@";	988	} or warn "$ext not loaded: $@";
1038	}	989	}
1039	}	990	}
1040		991
1041	#############################################################################	992	#############################################################################
1042	# load/save/clean perl data associated with a map
1043
1044	*cf::mapsupport::on_clean = sub {
1045	my ($map) = @_;
1046
1047	my $path = $map->tmpname;
1048	defined $path or return;
1049
1050	unlink "$path.pst";
1051	};
1052
1053	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1054
1055	#############################################################################
1056	# load/save perl data associated with player->ob objects
1057
1058	sub all_objects(@) {
1059	@_, map all_objects ($_->inv), @_
1060	}
1061
1062	# TODO: compatibility cruft, remove when no longer needed
1063	cf::player->attach (
1064	on_load => sub {
1065	my ($pl, $path) = @_;
1066
1067	for my $o (all_objects $pl->ob) {
1068	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1069	$o->set_ob_key_value ("_perl_data");
1070
1071	%$o = %{ Storable::thaw pack "H*", $value };
1072	}
1073	}
1074	},
1075	);
1076
1077	#############################################################################
1078		993
1079	=head2 CORE EXTENSIONS	994	=head2 CORE EXTENSIONS
1080		995
1081	Functions and methods that extend core crossfire objects.	996	Functions and methods that extend core crossfire objects.
1082		997
		998	=cut
		999
		1000	package cf::player;
		1001
		1002	use Coro::AIO;
		1003
1083	=head3 cf::player	1004	=head3 cf::player
1084		1005
1085	=over 4	1006	=over 4
1086		1007
1087	=item cf::player::exists $login	1008	=item cf::player::find $login
1088		1009
1089	Returns true when the given account exists.	1010	Returns the given player object, loading it if necessary (might block).
1090		1011
1091	=cut	1012	=cut
1092		1013
1093	sub cf::player::exists($) {	1014	sub playerdir($) {
1094	cf::player::find $_[0]	1015	"$PLAYERDIR/"
1095	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	1016	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1096	}	1017	}
1097		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
1098	=item $player->ext_reply ($msgid, $msgtype, %msg)	1190	=item $player->ext_reply ($msgid, %msg)
1099		1191
1100	Sends an ext reply to the player.	1192	Sends an ext reply to the player.
1101		1193
1102	=cut	1194	=cut
1103		1195
1104	sub cf::player::ext_reply($$$%) {	1196	sub ext_reply($$%) {
1105	my ($self, $id, %msg) = @_;	1197	my ($self, $id, %msg) = @_;
1106		1198
1107	$msg{msgid} = $id;	1199	$msg{msgid} = $id;
1108		1200
1109	$self->send ("ext " . to_json \%msg);	1201	$self->send ("ext " . cf::to_json \%msg);
		1202	}
		1203
		1204	=item $player->ext_event ($type, %msg)
		1205
		1206	Sends an ext event to the client.
		1207
		1208	=cut
		1209
		1210	sub ext_event($$%) {
		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
1110	}	1243	}
1111		1244
1112	=back	1245	=back
1113
1114		1246
1115	=head3 cf::map	1247	=head3 cf::map
1116		1248
1117	=over 4	1249	=over 4
1118		1250
…		…
1121	package cf::map;	1253	package cf::map;
1122		1254
1123	use Fcntl;	1255	use Fcntl;
1124	use Coro::AIO;	1256	use Coro::AIO;
1125		1257
		1258	use overload
		1259	'""' => \&as_string,
		1260	fallback => 1;
		1261
1126	our $MAX_RESET = 3600;	1262	our $MAX_RESET = 3600;
1127	our $DEFAULT_RESET = 3000;	1263	our $DEFAULT_RESET = 3000;
1128		1264
1129	sub generate_random_map {	1265	sub generate_random_map {
1130	my ($path, $rmp) = @_;	1266	my ($self, $rmp) = @_;
1131
1132	# mit "rum" bekleckern, nicht	1267	# mit "rum" bekleckern, nicht
1133	cf::map::_create_random_map	1268	$self->_create_random_map (
1134	$path,
1135	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1269	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1136	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1270	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1137	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1271	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1138	$rmp->{exit_on_final_map},	1272	$rmp->{exit_on_final_map},
1139	$rmp->{xsize}, $rmp->{ysize},	1273	$rmp->{xsize}, $rmp->{ysize},
1140	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1274	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1141	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1275	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1142	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1276	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1143	$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},
1144	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1278	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1145	(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"
1146	}	1408	}
1147		1409
1148	# and all this just because we cannot iterate over	1410	# and all this just because we cannot iterate over
1149	# all maps in C++...	1411	# all maps in C++...
1150	sub change_all_map_light {	1412	sub change_all_map_light {
…		…
1152		1414
1153	$_->change_map_light ($change)	1415	$_->change_map_light ($change)
1154	for grep $_->outdoor, values %cf::MAP;	1416	for grep $_->outdoor, values %cf::MAP;
1155	}	1417	}
1156		1418
		1419	sub decay_objects {
		1420	my ($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
1157	sub try_load_header($) {	1435	sub load_header_from($) {
1158	my ($path) = @_;	1436	my ($self, $path) = @_;
1159		1437
1160	utf8::encode $path;	1438	utf8::encode $path;
1161	aio_open $path, O_RDONLY, 0	1439	#aio_open $path, O_RDONLY, 0
		1440	# or return;
		1441
		1442	$self->_load_header ($path)
1162	or return;	1443	or return;
1163		1444
1164	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
1165	or return;	1488	or return;
		1489	$self->prepare_orig;
		1490	}
1166		1491
1167	# for better error messages only, will be overwritten	1492	$self->{deny_reset} = 1
1168	$map->path ($path);	1493	if $self->no_reset;
1169		1494
1170	$map->load_header ($path)	1495	$self->default_region (cf::region::find_by_path $self->{path})
1171	or return;	1496	unless $self->default_region;
1172		1497
1173	$map->{load_path} = $path;	1498	1
1174
1175	$map
1176	}	1499	}
1177		1500
1178	sub find;	1501	sub find;
1179	sub find {	1502	sub find {
1180	my ($path, $origin) = @_;	1503	my ($path, $origin) = @_;
1181		1504
1182	#warn "find<$path,$origin>\n";#d#
1183
1184	$path = new cf::path $path, $origin && $origin->path;	1505	$path = normalise $path, $origin && $origin->path;
1185	my $key = $path->as_string;
1186		1506
1187	cf::lock_wait "map_find:$key";	1507	cf::lock_wait "map_find:$path";
1188		1508
1189	$cf::MAP{$key} || do {	1509	$cf::MAP{$path} || do {
1190	my $guard = cf::lock_acquire "map_find:$key";	1510	my $guard = cf::lock_acquire "map_find:$path";
1191		1511	my $map = new_from_path cf::map $path
1192	# do it the slow way
1193	my $map = try_load_header $path->save_path;
1194
1195	Coro::cede;
1196
1197	if ($map) {
1198	$map->last_access ((delete $map->{last_access})
1199	|| $cf::RUNTIME); #d#
1200	# safety
1201	$map->{instantiate_time} = $cf::RUNTIME
1202	if $map->{instantiate_time} > $cf::RUNTIME;
1203	} else {
1204	if (my $rmp = $path->random_map_params) {
1205	$map = generate_random_map $key, $rmp;
1206	} else {
1207	$map = try_load_header $path->load_path;
1208	}
1209
1210	$map or return;	1512	or return;
1211		1513
1212	$map->{load_original} = 1;
1213	$map->{instantiate_time} = $cf::RUNTIME;
1214	$map->last_access ($cf::RUNTIME);
1215	$map->instantiate;
1216
1217	# per-player maps become, after loading, normal maps
1218	$map->per_player (0) if $path->{user_rel};
1219	}
1220
1221	$map->path ($key);
1222	$map->{path} = $path;
1223	$map->{last_save} = $cf::RUNTIME;	1514	$map->{last_save} = $cf::RUNTIME;
1224		1515
1225	Coro::cede;	1516	$map->load_header
		1517	or return;
1226		1518
1227	if ($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;
1228	$map->reset;	1522	$map->reset;
1229	undef $guard;	1523	undef $guard;
1230	$map = find $path	1524	return find $path;
1231	or return;
1232	}	1525	}
1233		1526
1234	$cf::MAP{$key} = $map	1527	$cf::MAP{$path} = $map
1235	}	1528	}
1236	}	1529	}
		1530
		1531	sub pre_load { }
		1532	sub post_load { }
1237		1533
1238	sub load {	1534	sub load {
1239	my ($self) = @_;	1535	my ($self) = @_;
1240		1536
		1537	local $self->{deny_reset} = 1; # loading can take a long time
		1538
1241	my $path = $self->{path};	1539	my $path = $self->{path};
		1540
		1541	{
1242	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1542	my $guard = cf::lock_acquire "map_load:$path";
1243		1543
1244	return if $self->in_memory != cf::MAP_SWAPPED;	1544	return if $self->in_memory != cf::MAP_SWAPPED;
1245		1545
1246	$self->in_memory (cf::MAP_LOADING);	1546	$self->in_memory (cf::MAP_LOADING);
1247		1547
1248	$self->alloc;	1548	$self->alloc;
		1549
		1550	$self->pre_load;
		1551	Coro::cede;
		1552
1249	$self->load_objects ($self->{load_path}, 1)	1553	$self->_load_objects ($self->{load_path}, 1)
1250	or return;	1554	or return;
1251		1555
1252	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1556	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1253	if delete $self->{load_original};	1557	if delete $self->{load_original};
1254		1558
1255	if (my $uniq = $path->uniq_path) {	1559	if (my $uniq = $self->uniq_path) {
1256	utf8::encode $uniq;	1560	utf8::encode $uniq;
1257	if (aio_open $uniq, O_RDONLY, 0) {	1561	if (aio_open $uniq, O_RDONLY, 0) {
1258	$self->clear_unique_items;	1562	$self->clear_unique_items;
1259	$self->load_objects ($uniq, 0);	1563	$self->_load_objects ($uniq, 0);
1260	}	1564	}
1261	}	1565	}
1262		1566
1263	Coro::cede;	1567	Coro::cede;
1264
1265	# now do the right thing for maps	1568	# now do the right thing for maps
1266	$self->link_multipart_objects;	1569	$self->link_multipart_objects;
1267
1268	if ($self->{path}->is_style_map) {
1269	$self->{deny_save} = 1;
1270	$self->{deny_reset} = 1;
1271	} else {
1272	$self->fix_auto_apply;
1273	$self->decay_objects;
1274	$self->update_buttons;
1275	$self->set_darkness_map;
1276	$self->difficulty ($self->estimate_difficulty)	1570	$self->difficulty ($self->estimate_difficulty)
1277	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;
1278	$self->activate;	1581	$self->activate;
1279	}	1582	}
1280		1583
1281	Coro::cede;
1282
1283	$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	$neigh->load;
		1623	}
1284	}	1624	}
1285		1625
1286	sub find_sync {	1626	sub find_sync {
1287	my ($path, $origin) = @_;	1627	my ($path, $origin) = @_;
1288		1628
1289	cf::sync_job { cf::map::find $path, $origin }	1629	cf::sync_job { find $path, $origin }
1290	}	1630	}
1291		1631
1292	sub do_load_sync {	1632	sub do_load_sync {
1293	my ($map) = @_;	1633	my ($map) = @_;
1294		1634
1295	cf::sync_job { $map->load };	1635	cf::sync_job { $map->load };
1296	}	1636	}
1297		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	$MAP_PREFETCHER->prio (6);
		1664
		1665	()
		1666	}
		1667
1298	sub save {	1668	sub save {
1299	my ($self) = @_;	1669	my ($self) = @_;
1300		1670
1301	my $lock = cf::lock_acquire "map_data:" . $self->path;	1671	my $lock = cf::lock_acquire "map_data:" . $self->path;
1302		1672
1303	$self->{last_save} = $cf::RUNTIME;	1673	$self->{last_save} = $cf::RUNTIME;
1304		1674
1305	return unless $self->dirty;	1675	return unless $self->dirty;
1306		1676
1307	my $save = $self->{path}->save_path; utf8::encode $save;	1677	my $save = $self->save_path; utf8::encode $save;
1308	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	1678	my $uniq = $self->uniq_path; utf8::encode $uniq;
1309		1679
1310	$self->{load_path} = $save;	1680	$self->{load_path} = $save;
1311		1681
1312	return if $self->{deny_save};	1682	return if $self->{deny_save};
1313		1683
1314	local $self->{last_access} = $self->last_access;#d#	1684	local $self->{last_access} = $self->last_access;#d#
1315		1685
		1686	cf::async {
		1687	$_->contr->save for $self->players;
		1688	};
		1689
1316	if ($uniq) {	1690	if ($uniq) {
1317	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1691	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1318	$self->save_objects ($uniq, cf::IO_UNIQUES);	1692	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1319	} else {	1693	} else {
1320	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1694	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1321	}	1695	}
1322	}	1696	}
1323		1697
1324	sub swap_out {	1698	sub swap_out {
1325	my ($self) = @_;	1699	my ($self) = @_;
…		…
1339		1713
1340	sub reset_at {	1714	sub reset_at {
1341	my ($self) = @_;	1715	my ($self) = @_;
1342		1716
1343	# TODO: safety, remove and allow resettable per-player maps	1717	# TODO: safety, remove and allow resettable per-player maps
1344	return 1e99 if $self->{path}{user_rel};
1345	return 1e99 if $self->{deny_reset};	1718	return 1e99 if $self->{deny_reset};
1346		1719
1347	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1720	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1348	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1721	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1349		1722
…		…
1354	my ($self) = @_;	1727	my ($self) = @_;
1355		1728
1356	$self->reset_at <= $cf::RUNTIME	1729	$self->reset_at <= $cf::RUNTIME
1357	}	1730	}
1358		1731
1359	sub unlink_save {
1360	my ($self) = @_;
1361
1362	utf8::encode (my $save = $self->{path}->save_path);
1363	aioreq_pri 3; IO::AIO::aio_unlink $save;
1364	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1365	}
1366
1367	sub rename {
1368	my ($self, $new_path) = @_;
1369
1370	$self->unlink_save;
1371
1372	delete $cf::MAP{$self->path};
1373	$self->{path} = new cf::path $new_path;
1374	$self->path ($self->{path}->as_string);
1375	$cf::MAP{$self->path} = $self;
1376
1377	$self->save;
1378	}
1379
1380	sub reset {	1732	sub reset {
1381	my ($self) = @_;	1733	my ($self) = @_;
1382		1734
1383	my $lock = cf::lock_acquire "map_data:" . $self->path;	1735	my $lock = cf::lock_acquire "map_data:$self->{path}";
1384		1736
1385	return if $self->players;	1737	return if $self->players;
1386	return if $self->{path}{user_rel};#d#
1387		1738
1388	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	}
1389		1750
1390	delete $cf::MAP{$self->path};	1751	delete $cf::MAP{$self->path};
		1752
		1753	$self->clear;
1391		1754
1392	$_->clear_links_to ($self) for values %cf::MAP;	1755	$_->clear_links_to ($self) for values %cf::MAP;
1393		1756
1394	$self->unlink_save;	1757	$self->unlink_save;
1395	$self->destroy;	1758	$self->destroy;
…		…
1398	my $nuke_counter = "aaaa";	1761	my $nuke_counter = "aaaa";
1399		1762
1400	sub nuke {	1763	sub nuke {
1401	my ($self) = @_;	1764	my ($self) = @_;
1402		1765
		1766	delete $cf::MAP{$self->path};
		1767
		1768	$self->unlink_save;
		1769
		1770	bless $self, "cf::map";
		1771	delete $self->{deny_reset};
1403	$self->{deny_save} = 1;	1772	$self->{deny_save} = 1;
1404	$self->reset_timeout (1);	1773	$self->reset_timeout (1);
1405	$self->rename ("{nuke}/" . ($nuke_counter++));	1774	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1775
		1776	$cf::MAP{$self->path} = $self;
		1777
1406	$self->reset; # polite request, might not happen	1778	$self->reset; # polite request, might not happen
1407	}	1779	}
1408		1780
1409	sub customise_for {	1781	=item $maps = cf::map::tmp_maps
1410	my ($map, $ob) = @_;
1411		1782
1412	if ($map->per_player) {	1783	Returns an arrayref with all map paths of currently instantiated and saved
1413	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	1784	maps. May block.
		1785
		1786	=cut
		1787
		1788	sub tmp_maps() {
1414	}	1789	[
1415		1790	map {
1416	$map	1791	utf8::decode $_;
		1792	/\.map$/
		1793	? normalise $_
		1794	: ()
		1795	} @{ aio_readdir $TMPDIR or [] }
		1796	]
1417	}	1797	}
1418		1798
1419	sub emergency_save {	1799	=item $maps = cf::map::random_maps
1420	my $freeze_guard = cf::freeze_mainloop;
1421		1800
1422	warn "enter emergency map save\n";	1801	Returns an arrayref with all map paths of currently instantiated and saved
		1802	random maps. May block.
1423		1803
1424	cf::sync_job {	1804	=cut
1425	warn "begin emergency map save\n";
1426	$_->save for values %cf::MAP;
1427	};
1428		1805
1429	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	]
1430	}	1833	}
1431		1834
1432	package cf;	1835	package cf;
1433		1836
1434	=back	1837	=back
1435		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
1436		1865
1437	=head3 cf::object::player	1866	=head3 cf::object::player
1438		1867
1439	=over 4	1868	=over 4
1440		1869
…		…
1480		1909
1481	=item $player_object->enter_link	1910	=item $player_object->enter_link
1482		1911
1483	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}>).
1484		1913
1485	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
1486	I<MUST> call C<leave_link> as soon as possible, though.	1915	I<MUST> call C<leave_link> as soon as possible, though.
1487		1916
		1917	Will never block.
		1918
1488	=item $player_object->leave_link ($map, $x, $y)	1919	=item $player_object->leave_link ($map, $x, $y)
1489		1920
1490	Moves the player out of the specila link map onto the given map. If the	1921	Moves the player out of the special C<{link}> map onto the specified
1491	map is not valid (or omitted), the player will be moved back to the	1922	map. If the map is not valid (or omitted), the player will be moved back
1492	location he/she was before the call to C<enter_link>, or, if that fails,	1923	to the location he/she was before the call to C<enter_link>, or, if that
1493	to the emergency map position.	1924	fails, to the emergency map position.
1494		1925
1495	Might block.	1926	Might block.
1496		1927
1497	=cut	1928	=cut
		1929
		1930	sub link_map {
		1931	unless ($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	$LINK_MAP
		1938	}
1498		1939
1499	sub cf::object::player::enter_link {	1940	sub cf::object::player::enter_link {
1500	my ($self) = @_;	1941	my ($self) = @_;
1501		1942
1502	$self->deactivate_recursive;	1943	$self->deactivate_recursive;
1503		1944
1504	return if $self->map == $LINK_MAP;	1945	return if UNIVERSAL::isa $self->map, "ext::map_link";
1505		1946
1506	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	1947	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1507	if $self->map;	1948	if $self->map && $self->map->{path} ne "{link}";
1508		1949
1509	$self->enter_map ($LINK_MAP, 20, 20);	1950	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1510	}	1951	}
1511		1952
1512	sub cf::object::player::leave_link {	1953	sub cf::object::player::leave_link {
1513	my ($self, $map, $x, $y) = @_;	1954	my ($self, $map, $x, $y) = @_;
		1955
		1956	return unless $self->contr->active;
1514		1957
1515	my $link_pos = delete $self->{_link_pos};	1958	my $link_pos = delete $self->{_link_pos};
1516		1959
1517	unless ($map) {	1960	unless ($map) {
1518	# restore original map position	1961	# restore original map position
…		…
1532	# use -1 or undef as default coordinates, not 0, 0	1975	# use -1 or undef as default coordinates, not 0, 0
1533	($x, $y) = ($map->enter_x, $map->enter_y)	1976	($x, $y) = ($map->enter_x, $map->enter_y)
1534	if $x <=0 && $y <= 0;	1977	if $x <=0 && $y <= 0;
1535		1978
1536	$map->load;	1979	$map->load;
		1980	$map->load_diag;
1537		1981
		1982	return unless $self->contr->active;
1538	$self->activate_recursive;	1983	$self->activate_recursive;
		1984
		1985	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1539	$self->enter_map ($map, $x, $y);	1986	$self->enter_map ($map, $x, $y);
1540	}	1987	}
1541		1988
1542	cf::player->attach (
1543	on_logout => sub {
1544	my ($pl) = @_;
1545
1546	# abort map switching before logout
1547	if ($pl->ob->{_link_pos}) {
1548	cf::sync_job {
1549	$pl->ob->leave_link
1550	};
1551	}
1552	},
1553	on_login => sub {
1554	my ($pl) = @_;
1555
1556	# try to abort aborted map switching on player login :)
1557	# should happen only on crashes
1558	if ($pl->ob->{_link_pos}) {
1559	$pl->ob->enter_link;
1560	cf::async {
1561	# we need this sleep as the login has a concurrent enter_exit running
1562	# and this sleep increases chances of the player not ending up in scorn
1563	Coro::Timer::sleep 1;
1564	$pl->ob->leave_link;
1565	};
1566	}
1567	},
1568	);
1569
1570	=item $player_object->goto ($path, $x, $y)	1989	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1571		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
1572	=cut	1996	=cut
		1997
		1998	our $GOTOGEN;
1573		1999
1574	sub cf::object::player::goto {	2000	sub cf::object::player::goto {
1575	my ($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;
1576		2005
1577	$self->enter_link;	2006	$self->enter_link;
1578		2007
1579	(cf::async {	2008	(async {
1580	$path = new cf::path $path;	2009	my $map = eval {
1581
1582	my $map = cf::map::find $path->as_string;	2010	my $map = cf::map::find $path;
		2011
		2012	if ($map) {
1583	$map = $map->customise_for ($self) if $map;	2013	$map = $map->customise_for ($self);
1584		2014	$map = $check->($map) if $check && $map;
1585	# warn "entering ", $map->path, " at ($x, $y)\n"	2015	} else {
1586	# if $map;
1587
1588	$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	}
1589		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};
1590	$self->leave_link ($map, $x, $y);	2029	$self->leave_link ($map, $x, $y);
		2030	}
1591	})->prio (1);	2031	})->prio (1);
1592	}	2032	}
1593		2033
1594	=item $player_object->enter_exit ($exit_object)	2034	=item $player_object->enter_exit ($exit_object)
1595		2035
…		…
1597		2037
1598	sub parse_random_map_params {	2038	sub parse_random_map_params {
1599	my ($spec) = @_;	2039	my ($spec) = @_;
1600		2040
1601	my $rmp = { # defaults	2041	my $rmp = { # defaults
1602	xsize => 10,	2042	xsize => (cf::rndm 15, 40),
1603	ysize => 10,	2043	ysize => (cf::rndm 15, 40),
		2044	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2045	#layout => string,
1604	};	2046	};
1605		2047
1606	for (split /\n/, $spec) {	2048	for (split /\n/, $spec) {
1607	my ($k, $v) = split /\s+/, $_, 2;	2049	my ($k, $v) = split /\s+/, $_, 2;
1608		2050
…		…
1612	$rmp	2054	$rmp
1613	}	2055	}
1614		2056
1615	sub prepare_random_map {	2057	sub prepare_random_map {
1616	my ($exit) = @_;	2058	my ($exit) = @_;
		2059
		2060	my $guard = cf::lock_acquire "exit_prepare:$exit";
1617		2061
1618	# all this does is basically replace the /! path by	2062	# all this does is basically replace the /! path by
1619	# a new random map path (?random/...) with a seed	2063	# a new random map path (?random/...) with a seed
1620	# that depends on the exit object	2064	# that depends on the exit object
1621		2065
1622	my $rmp = parse_random_map_params $exit->msg;	2066	my $rmp = parse_random_map_params $exit->msg;
1623		2067
1624	if ($exit->map) {	2068	if ($exit->map) {
1625	$rmp->{region} = $exit->map->region_name;	2069	$rmp->{region} = $exit->region->name;
1626	$rmp->{origin_map} = $exit->map->path;	2070	$rmp->{origin_map} = $exit->map->path;
1627	$rmp->{origin_x} = $exit->x;	2071	$rmp->{origin_x} = $exit->x;
1628	$rmp->{origin_y} = $exit->y;	2072	$rmp->{origin_y} = $exit->y;
1629	}	2073	}
1630		2074
1631	$rmp->{random_seed} ||= $exit->random_seed;	2075	$rmp->{random_seed} ||= $exit->random_seed;
1632		2076
1633	my $data = cf::to_json $rmp;	2077	my $data = cf::to_json $rmp;
1634	my $md5 = Digest::MD5::md5_hex $data;	2078	my $md5 = Digest::MD5::md5_hex $data;
		2079	my $meta = "$RANDOMDIR/$md5.meta";
1635		2080
1636	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) {
1637	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;
1638		2085
1639	$exit->slaying ("?random/$md5");	2086	$exit->slaying ("?random/$md5");
1640	$exit->msg (undef);	2087	$exit->msg (undef);
1641	}	2088	}
1642	}	2089	}
…		…
1644	sub cf::object::player::enter_exit {	2091	sub cf::object::player::enter_exit {
1645	my ($self, $exit) = @_;	2092	my ($self, $exit) = @_;
1646		2093
1647	return unless $self->type == cf::PLAYER;	2094	return unless $self->type == cf::PLAYER;
1648		2095
		2096	if ($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
1649	$self->enter_link;	2107	$self->enter_link;
1650		2108
1651	(cf::async {	2109	(async {
1652	$self->deactivate_recursive; # just to be sure	2110	$self->deactivate_recursive; # just to be sure
1653	unless (eval {	2111	unless (eval {
1654	prepare_random_map $exit	2112	$self->goto ($slaying, $hp, $sp);
1655	if $exit->slaying eq "/!";
1656
1657	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1658	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1659		2113
1660	1;	2114	1;
1661	}) {	2115	}) {
1662	$self->message ("Something went wrong deep within the crossfire server. "	2116	$self->message ("Something went wrong deep within the crossfire server. "
1663	. "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. "
1664	. "Please report this to the dungeon master",	2118	. "Please report this to the dungeon master!",
1665	cf::NDI_UNIQUE | cf::NDI_RED);	2119	cf::NDI_UNIQUE | cf::NDI_RED);
1666		2120
1667	warn "ERROR in enter_exit: $@";	2121	warn "ERROR in enter_exit: $@";
1668	$self->leave_link;	2122	$self->leave_link;
1669	}	2123	}
1670	})->prio (1);	2124	})->prio (1);
…		…
1683		2137
1684	sub cf::client::send_drawinfo {	2138	sub cf::client::send_drawinfo {
1685	my ($self, $text, $flags) = @_;	2139	my ($self, $text, $flags) = @_;
1686		2140
1687	utf8::encode $text;	2141	utf8::encode $text;
1688	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2142	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1689	}	2143	}
1690		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	}
1691		2157
1692	=item $success = $client->query ($flags, "text", \&cb)	2158	=item $success = $client->query ($flags, "text", \&cb)
1693		2159
1694	Queues a query to the client, calling the given callback with	2160	Queues a query to the client, calling the given callback with
1695	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>,
…		…
1724	# get handled first	2190	# get handled first
1725	my $queue = delete $ns->{query_queue}	2191	my $queue = delete $ns->{query_queue}
1726	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
1727		2193
1728	(shift @$queue)->[1]->($msg);	2194	(shift @$queue)->[1]->($msg);
		2195	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1729		2196
1730	push @{ $ns->{query_queue} }, @$queue;	2197	push @{ $ns->{query_queue} }, @$queue;
1731		2198
1732	if (@{ $ns->{query_queue} } == @$queue) {	2199	if (@{ $ns->{query_queue} } == @$queue) {
1733	if (@$queue) {	2200	if (@$queue) {
…		…
1737	}	2204	}
1738	}	2205	}
1739	},	2206	},
1740	);	2207	);
1741		2208
1742	=item $client->coro (\&cb)	2209	=item $client->async (\&cb)
1743		2210
1744	Create a new coroutine, running the specified callback. The coroutine will	2211	Create a new coroutine, running the specified callback. The coroutine will
1745	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,
1746	or loss of connection).	2213	or loss of connection).
1747		2214
1748	=cut	2215	=cut
1749		2216
1750	sub cf::client::coro {	2217	sub cf::client::async {
1751	my ($self, $cb) = @_;	2218	my ($self, $cb) = @_;
1752		2219
1753	my $coro = &cf::async ($cb);	2220	my $coro = &Coro::async ($cb);
1754		2221
1755	$coro->on_destroy (sub {	2222	$coro->on_destroy (sub {
1756	delete $self->{_coro}{$coro+0};	2223	delete $self->{_coro}{$coro+0};
1757	});	2224	});
1758		2225
…		…
1791		2258
1792	# here we export the classes and methods available to script code	2259	# here we export the classes and methods available to script code
1793		2260
1794	=pod	2261	=pod
1795		2262
1796	The following fucntions and emthods are available within a safe environment:	2263	The following functions and methods are available within a safe environment:
1797		2264
1798	cf::object contr pay_amount pay_player map	2265	cf::object contr pay_amount pay_player map
1799	cf::object::player player	2266	cf::object::player player
1800	cf::player peaceful	2267	cf::player peaceful
1801	cf::map trigger	2268	cf::map trigger
…		…
1886	#############################################################################	2353	#############################################################################
1887		2354
1888	=head2 EXTENSION DATABASE SUPPORT	2355	=head2 EXTENSION DATABASE SUPPORT
1889		2356
1890	Crossfire maintains a very simple database for extension use. It can	2357	Crossfire maintains a very simple database for extension use. It can
1891	currently store anything that can be serialised using Storable, which	2358	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
1892	excludes objects.	2359	convert to/from binary).
1893		2360
1894	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
1895	using it, it should be unique.	2362	using it, it should be unique.
1896		2363
1897	=over 4	2364	=over 4
1898		2365
1899	=item $hashref = cf::db_get $family
1900
1901	Return a hashref for use by the extension C<$family>, which can be
1902	modified. After modifications, you have to call C<cf::db_dirty> or
1903	C<cf::db_sync>.
1904
1905	=item $value = cf::db_get $family => $key	2366	=item $value = cf::db_get $family => $key
1906		2367
1907	Returns a single value from the database	2368	Returns a single value from the database.
1908
1909	=item cf::db_put $family => $hashref
1910
1911	Stores the given family hashref into the database. Updates are delayed, if
1912	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1913		2369
1914	=item cf::db_put $family => $key => $value	2370	=item cf::db_put $family => $key => $value
1915		2371
1916	Stores the given C<$value> in the family hash. Updates are delayed, if you	2372	Stores the given C<$value> in the family.
1917	want the data to be synced to disk immediately, use C<cf::db_sync>.
1918
1919	=item cf::db_dirty
1920
1921	Marks the database as dirty, to be updated at a later time.
1922
1923	=item cf::db_sync
1924
1925	Immediately write the database to disk I<if it is dirty>.
1926		2373
1927	=cut	2374	=cut
1928		2375
1929	our $DB;	2376	our $DB;
1930		2377
1931	{	2378	sub db_init {
1932	my $path = cf::localdir . "/database.pst";	2379	unless ($DB) {
		2380	$DB = BDB::db_create $DB_ENV;
1933		2381
1934	sub db_load() {	2382	cf::sync_job {
1935	$DB = stat $path ? Storable::retrieve $path : { };	2383	eval {
1936	}	2384	$DB->set_flags (BDB::CHKSUM);
1937		2385
1938	my $pid;	2386	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
1939		2387	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
1940	sub db_save() {	2388	cf::cleanup "db_open(db): $!" if $!;
1941	waitpid $pid, 0 if $pid;	2389	};
1942	if (0 == ($pid = fork)) {	2390	cf::cleanup "db_open(db): $@" if $@;
1943	$DB->{_meta}{version} = 1;
1944	Storable::nstore $DB, "$path~";
1945	rename "$path~", $path;
1946	cf::_exit 0 if defined $pid;
1947	}	2391	};
1948	}
1949
1950	my $dirty;
1951
1952	sub db_sync() {
1953	db_save if $dirty;
1954	undef $dirty;
1955	}
1956
1957	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1958	db_sync;
1959	});	2392	}
		2393	}
1960		2394
1961	sub db_dirty() {
1962	$dirty = 1;
1963	$idle->start;
1964	}
1965
1966	sub db_get($;$) {	2395	sub db_get($$) {
1967	@_ >= 2	2396	my $key = "$_[0]/$_[1]";
1968	? $DB->{$_[0]}{$_[1]}
1969	: ($DB->{$_[0]} ||= { })
1970	}
1971		2397
		2398	cf::sync_job {
		2399	BDB::db_get $DB, undef, $key, my $data;
		2400
		2401	$! ? ()
		2402	: $data
		2403	}
		2404	}
		2405
1972	sub db_put($$;$) {	2406	sub db_put($$$) {
1973	if (@_ >= 3) {	2407	BDB::dbreq_pri 4;
1974	$DB->{$_[0]}{$_[1]} = $_[2];	2408	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
1975	} else {	2409	}
1976	$DB->{$_[0]} = $_[1];
1977	}
1978	db_dirty;
1979	}
1980		2410
1981	cf::global->attach (	2411	=item cf::cache $id => [$paths...], $processversion => $process
1982	prio => 10000,	2412
1983	on_cleanup => sub {	2413	Generic caching function that returns the value of the resource $id,
1984	db_sync;	2414	caching and regenerating as required.
		2415
		2416	This function can block.
		2417
		2418	=cut
		2419
		2420	sub cache {
		2421	my ($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 "$src->[$_]: $!";
1985	},	2443	}
1986	);	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	}
1987	}	2523	}
1988		2524
1989	#############################################################################	2525	#############################################################################
1990	# 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	}
1991		2615
1992	sub cfg_load {	2616	sub cfg_load {
1993	open my $fh, "<:utf8", cf::confdir . "/config"	2617	open my $fh, "<:utf8", "$CONFDIR/config"
1994	or return;	2618	or return;
1995		2619
1996	local $/;	2620	local $/;
1997	*CFG = YAML::Syck::Load <$fh>;	2621	*CFG = YAML::Syck::Load <$fh>;
1998		2622
1999	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	2623	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2000		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
2001	if (exists $CFG{mlockall}) {	2628	if (exists $CFG{mlockall}) {
2002	eval {	2629	eval {
2003	$CFG{mlockall} ? &mlockall : &munlockall	2630	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2004	and die "WARNING: m(un)lockall failed: $!\n";	2631	and die "WARNING: m(un)lockall failed: $!\n";
2005	};	2632	};
2006	warn $@ if $@;	2633	warn $@ if $@;
2007	}	2634	}
2008	}	2635	}
2009		2636
2010	sub main {	2637	sub main {
2011	# we must not ever block the main coroutine	2638	# we must not ever block the main coroutine
2012	local $Coro::idle = sub {	2639	local $Coro::idle = sub {
2013	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#
2014	(Coro::unblock_sub {	2641	(async {
2015	Event::one_event;	2642	Event::one_event;
2016	})->();	2643	})->prio (Coro::PRIO_MAX);
2017	};	2644	};
2018		2645
2019	cfg_load;	2646	cfg_load;
2020	db_load;	2647	db_init;
2021	load_extensions;	2648	load_extensions;
		2649
		2650	$TICK_WATCHER->start;
2022	Event::loop;	2651	Event::loop;
2023	}	2652	}
2024		2653
2025	#############################################################################	2654	#############################################################################
2026	# initialisation	2655	# initialisation and cleanup
2027		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
2028	sub reload() {	2712	sub do_reload_perl() {
2029	# can/must only be called in main	2713	# can/must only be called in main
2030	if ($Coro::current != $Coro::main) {	2714	if ($Coro::current != $Coro::main) {
2031	warn "can only reload from main coroutine\n";	2715	warn "can only reload from main coroutine";
2032	return;	2716	return;
2033	}	2717	}
2034		2718
2035	warn "reloading...";	2719	warn "reloading...";
2036		2720
2037	my $guard = freeze_mainloop;	2721	warn "entering sync_job";
		2722
		2723	cf::sync_job {
		2724	cf::write_runtime; # external watchdog should not bark
2038	cf::emergency_save;	2725	cf::emergency_save;
		2726	cf::write_runtime; # external watchdog should not bark
2039		2727
2040	eval {	2728	warn "syncing database to disk";
		2729	BDB::db_env_txn_checkpoint $DB_ENV;
		2730
2041	# 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
2042		2732
2043	# cancel all watchers	2733	warn "cancelling all WF_AUTOCANCEL watchers";
2044	for (Event::all_watchers) {	2734	for (Event::all_watchers) {
2045	$_->cancel if $_->data & WF_AUTOCANCEL;	2735	$_->cancel if $_->data & WF_AUTOCANCEL;
2046	}	2736	}
2047		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
2048	# cancel all extension coros	2749	warn "cancelling all extension coros";
2049	$_->cancel for values %EXT_CORO;	2750	$_->cancel for values %EXT_CORO;
2050	%EXT_CORO = ();	2751	%EXT_CORO = ();
2051		2752
2052	# unload all extensions	2753	warn "removing commands";
2053	for (@exts) {	2754	%COMMAND = ();
		2755
		2756	warn "removing ext commands";
		2757	%EXTCMD = ();
		2758
		2759	warn "unloading/nuking all extensions";
		2760	for my $pkg (@EXTS) {
2054	warn "unloading <$_>";	2761	warn "... unloading $pkg";
2055	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: $@";
2056	}	2768	}
2057		2769
		2770	warn "... nuking $pkg";
		2771	Symbol::delete_package $pkg;
		2772	}
		2773
2058	# unload all modules loaded from $LIBDIR	2774	warn "unloading all perl modules loaded from $LIBDIR";
2059	while (my ($k, $v) = each %INC) {	2775	while (my ($k, $v) = each %INC) {
2060	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2776	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2061		2777
2062	warn "removing <$k>";	2778	warn "... unloading $k";
2063	delete $INC{$k};	2779	delete $INC{$k};
2064		2780
2065	$k =~ s/\.pm$//;	2781	$k =~ s/\.pm$//;
2066	$k =~ s/\//::/g;	2782	$k =~ s/\//::/g;
2067		2783
…		…
2070	}	2786	}
2071		2787
2072	Symbol::delete_package $k;	2788	Symbol::delete_package $k;
2073	}	2789	}
2074		2790
2075	# sync database to disk
2076	cf::db_sync;
2077	IO::AIO::flush;
2078
2079	# get rid of safe::, as good as possible	2791	warn "getting rid of safe::, as good as possible";
2080	Symbol::delete_package "safe::$_"	2792	Symbol::delete_package "safe::$_"
2081	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);
2082		2794
2083	# remove register_script_function callbacks
2084	# TODO
2085
2086	# unload cf.pm "a bit"	2795	warn "unloading cf.pm \"a bit\"";
2087	delete $INC{"cf.pm"};	2796	delete $INC{"cf.pm"};
		2797	delete $INC{"cf/pod.pm"};
2088		2798
2089	# don't, removes xs symbols, too,	2799	# don't, removes xs symbols, too,
2090	# and global variables created in xs	2800	# and global variables created in xs
2091	#Symbol::delete_package __PACKAGE__;	2801	#Symbol::delete_package __PACKAGE__;
2092		2802
2093	# reload cf.pm	2803	warn "unload completed, starting to reload now";
		2804
2094	warn "reloading cf.pm";	2805	warn "reloading cf.pm";
2095	require cf;	2806	require cf;
2096	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2807	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2097		2808
2098	# load config and database again	2809	warn "loading config and database again";
2099	cf::cfg_load;	2810	cf::cfg_load;
2100	cf::db_load;
2101		2811
2102	# load extensions
2103	warn "load extensions";	2812	warn "loading extensions";
2104	cf::load_extensions;	2813	cf::load_extensions;
2105		2814
2106	# reattach attachments to objects	2815	warn "reattaching attachments to objects/players";
2107	warn "reattach";	2816	_global_reattach; # objects, sockets
2108	_global_reattach;	2817	warn "reattaching attachments to maps";
2109	};	2818	reattach $_ for values %MAP;
		2819	warn "reattaching attachments to players";
		2820	reattach $_ for values %PLAYER;
2110		2821
2111	if ($@) {	2822	warn "leaving sync_job";
		2823
		2824	1
		2825	} or do {
2112	warn $@;	2826	warn $@;
2113	warn "error while reloading, exiting.";	2827	warn "error while reloading, exiting.";
2114	exit 1;	2828	exit 1;
2115	}	2829	};
2116		2830
2117	warn "reloaded successfully";	2831	warn "reloaded";
2118	};	2832	};
2119		2833
2120	#############################################################################	2834	our $RELOAD_WATCHER; # used only during reload
2121		2835
2122	unless ($LINK_MAP) {	2836	sub reload_perl() {
2123	$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.
2124		2839
2125	$LINK_MAP->width (41);	2840	$RELOAD_WATCHER ||= Event->timer (
2126	$LINK_MAP->height (41);	2841	reentrant => 0,
2127	$LINK_MAP->alloc;
2128	$LINK_MAP->path ("{link}");
2129	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2130	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2131
2132	# dirty hack because... archetypes are not yet loaded
2133	Event->timer (
2134	after => 2,	2842	after => 0,
		2843	data => WF_AUTOCANCEL,
2135	cb => sub {	2844	cb => sub {
2136	$_[0]->w->cancel;	2845	do_reload_perl;
2137		2846	undef $RELOAD_WATCHER;
2138	# provide some exits "home"
2139	my $exit = cf::object::new "exit";
2140
2141	$exit->slaying ($EMERGENCY_POSITION->[0]);
2142	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2143	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2144
2145	$LINK_MAP->insert ($exit->clone, 19, 19);
2146	$LINK_MAP->insert ($exit->clone, 19, 20);
2147	$LINK_MAP->insert ($exit->clone, 19, 21);
2148	$LINK_MAP->insert ($exit->clone, 20, 19);
2149	$LINK_MAP->insert ($exit->clone, 20, 21);
2150	$LINK_MAP->insert ($exit->clone, 21, 19);
2151	$LINK_MAP->insert ($exit->clone, 21, 20);
2152	$LINK_MAP->insert ($exit->clone, 21, 21);
2153
2154	$exit->destroy;
2155	});	2847	},
2156		2848	);
2157	$LINK_MAP->{deny_save} = 1;
2158	$LINK_MAP->{deny_reset} = 1;
2159
2160	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2161	}	2849	}
2162
2163	register "<global>", __PACKAGE__;
2164		2850
2165	register_command "reload" => sub {	2851	register_command "reload" => sub {
2166	my ($who, $arg) = @_;	2852	my ($who, $arg) = @_;
2167		2853
2168	if ($who->flag (FLAG_WIZ)) {	2854	if ($who->flag (FLAG_WIZ)) {
2169	$who->message ("start of reload.");
2170	reload;
2171	$who->message ("end of reload.");	2855	$who->message ("reloading server.");
		2856	async { reload_perl };
2172	}	2857	}
2173	};	2858	};
2174		2859
2175	unshift @INC, $LIBDIR;	2860	unshift @INC, $LIBDIR;
2176		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;
2177	$TICK_WATCHER = Event->timer (	2887	$TICK_WATCHER = Event->timer (
2178	reentrant => 0,	2888	reentrant => 0,
		2889	parked => 1,
2179	prio => 0,	2890	prio => 0,
2180	at => $NEXT_TICK || $TICK,	2891	at => $NEXT_TICK || $TICK,
2181	data => WF_AUTOCANCEL,	2892	data => WF_AUTOCANCEL,
2182	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
2183	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
2184	$RUNTIME += $TICK;	2927	$RUNTIME += $TICK;
2185	$NEXT_TICK += $TICK;	2928	$NEXT_TICK += $TICK;
2186		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
2187	# 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
2188	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2951	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2189		2952
2190	$TICK_WATCHER->at ($NEXT_TICK);	2953	$TICK_WATCHER->at ($NEXT_TICK);
2191	$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
2192	},	2962	},
2193	);	2963	);
2194		2964
		2965	{
2195	IO::AIO::max_poll_time $TICK * 0.2;	2966	BDB::max_poll_time $TICK * 0.1;
2196		2967	$BDB_POLL_WATCHER = Event->io (
2197	Event->io (	2968	reentrant => 0,
2198	fd => IO::AIO::poll_fileno,	2969	fd => BDB::poll_fileno,
2199	poll => 'r',	2970	poll => 'r',
2200	prio => 5,	2971	prio => 0,
2201	data => WF_AUTOCANCEL,
2202	cb => \&IO::AIO::poll_cb,
2203	);
2204
2205	Event->timer (
2206	data => WF_AUTOCANCEL,	2972	data => WF_AUTOCANCEL,
2207	after => 0,	2973	cb => \&BDB::poll_cb,
2208	interval => 10,	2974	);
2209	cb => sub {	2975	BDB::min_parallel 8;
2210	(Coro::unblock_sub {	2976
2211	write_runtime	2977	BDB::set_sync_prepare {
2212	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 $@;
2213	})->();	3011	};
2214	},	3012	}
2215	);	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;
2216		3070
2217	END { cf::emergency_save }	3071	END { cf::emergency_save }
2218		3072
2219	1	3073	1
2220		3074

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