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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.133 by root, Thu Jan 4 16:19:32 2007 UTC vs.
Revision 1.254 by root, Thu Apr 19 11:12:45 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 $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
56		94
57	binmode STDOUT;	95	binmode STDOUT;
58	binmode STDERR;	96	binmode STDERR;
59		97
60	# read virtual server time, if available	98	# read virtual server time, if available
61	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	99	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
62	open my $fh, "<", cf::localdir . "/runtime"	100	open my $fh, "<", "$LOCALDIR/runtime"
63	or die "unable to read runtime file: $!";	101	or die "unable to read runtime file: $!";
64	$RUNTIME = <$fh> + 0.;	102	$RUNTIME = <$fh> + 0.;
65	}	103	}
66		104
67	mkdir cf::localdir;	105	mkdir $_
68	mkdir cf::localdir . "/" . cf::playerdir;	106	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
69	mkdir cf::localdir . "/" . cf::tmpdir;
70	mkdir cf::localdir . "/" . cf::uniquedir;
71	mkdir $RANDOM_MAPS;
72		107
73	# a special map that is always available
74	our $LINK_MAP;
75	our $EMERGENCY_POSITION;	108	our $EMERGENCY_POSITION;
		109
		110	sub cf::map::normalise;
76		111
77	#############################################################################	112	#############################################################################
78		113
79	=head2 GLOBAL VARIABLES	114	=head2 GLOBAL VARIABLES
80		115
…		…
87	=item $cf::RUNTIME	122	=item $cf::RUNTIME
88		123
89	The time this server has run, starts at 0 and is increased by $cf::TICK on	124	The time this server has run, starts at 0 and is increased by $cf::TICK on
90	every server tick.	125	every server tick.
91		126
92	=item $cf::LIBDIR	127	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		128	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		129	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
93		130
94	The perl library directory, where extensions and cf-specific modules can	131	Various directories - "/etc", read-only install directory, perl-library
95	be found. It will be added to C<@INC> automatically.	132	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		133	unique-items directory, player file directory, random maps directory and
		134	database environment.
96		135
97	=item $cf::NOW	136	=item $cf::NOW
98		137
99	The time of the last (current) server tick.	138	The time of the last (current) server tick.
100		139
…		…
104		143
105	=item %cf::CFG	144	=item %cf::CFG
106		145
107	Configuration for the server, loaded from C</etc/crossfire/config>, or	146	Configuration for the server, loaded from C</etc/crossfire/config>, or
108	from wherever your confdir points to.	147	from wherever your confdir points to.
		148
		149	=item cf::wait_for_tick, cf::wait_for_tick_begin
		150
		151	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		152	returns directly I<after> the tick processing (and consequently, can only wake one process
		153	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
109		154
110	=back	155	=back
111		156
112	=cut	157	=cut
113		158
114	BEGIN {	159	BEGIN {
115	*CORE::GLOBAL::warn = sub {	160	*CORE::GLOBAL::warn = sub {
116	my $msg = join "", @_;	161	my $msg = join "", @_;
117	utf8::encode $msg;
118		162
119	$msg .= "\n"	163	$msg .= "\n"
120	unless $msg =~ /\n$/;	164	unless $msg =~ /\n$/;
121		165
		166	$msg =~ s/([\x00-\x09\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		167
		168	utf8::encode $msg;
122	LOG llevError, "cfperl: $msg";	169	LOG llevError, $msg;
123	};	170	};
124	}	171	}
125		172
126	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	173	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
127	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	174	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
…		…
145		192
146	$Event::DIED = sub {	193	$Event::DIED = sub {
147	warn "error in event callback: @_";	194	warn "error in event callback: @_";
148	};	195	};
149		196
150	my %ext_pkg;
151	my @exts;
152	my @hook;
153
154	=head2 UTILITY FUNCTIONS	197	=head2 UTILITY FUNCTIONS
155		198
156	=over 4	199	=over 4
157		200
158	=cut	201	=item dumpval $ref
159		202
		203	=cut
		204
		205	sub dumpval {
		206	eval {
		207	local $SIG{__DIE__};
		208	my $d;
		209	if (1) {
		210	$d = new Data::Dumper([$_[0]], ["*var"]);
		211	$d->Terse(1);
		212	$d->Indent(2);
		213	$d->Quotekeys(0);
		214	$d->Useqq(1);
		215	#$d->Bless(...);
		216	$d->Seen($_[1]) if @_ > 1;
		217	$d = $d->Dump();
		218	}
		219	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		220	$d
		221	} || "[unable to dump $_[0]: '$@']";
		222	}
		223
160	use JSON::Syck (); # TODO# replace by JSON::PC once working	224	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
161		225
162	=item $ref = cf::from_json $json	226	=item $ref = cf::from_json $json
163		227
164	Converts a JSON string into the corresponding perl data structure.	228	Converts a JSON string into the corresponding perl data structure.
165		229
166	=cut
167
168	sub from_json($) {
169	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
170	JSON::Syck::Load $_[0]
171	}
172
173	=item $json = cf::to_json $ref	230	=item $json = cf::to_json $ref
174		231
175	Converts a perl data structure into its JSON representation.	232	Converts a perl data structure into its JSON representation.
176		233
177	=cut
178
179	sub to_json($) {
180	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
181	JSON::Syck::Dump $_[0]
182	}
183
184	=item my $guard = cf::guard { BLOCK }
185
186	Run the given callback when the guard object gets destroyed (useful for
187	coroutine cancellations).
188
189	You can call C<< ->cancel >> on the guard object to stop the block from
190	being executed.
191
192	=cut
193
194	sub guard(&) {
195	bless \(my $cb = $_[0]), cf::guard::;
196	}
197
198	sub cf::guard::cancel {
199	${$_[0]} = sub { };
200	}
201
202	sub cf::guard::DESTROY {
203	${$_[0]}->();
204	}
205
206	=item cf::lock_wait $string	234	=item cf::lock_wait $string
207		235
208	Wait until the given lock is available. See cf::lock_acquire.	236	Wait until the given lock is available. See cf::lock_acquire.
209		237
210	=item my $lock = cf::lock_acquire $string	238	=item my $lock = cf::lock_acquire $string
211		239
212	Wait until the given lock is available and then acquires it and returns	240	Wait until the given lock is available and then acquires it and returns
213	a guard object. If the guard object gets destroyed (goes out of scope,	241	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
214	for example when the coroutine gets canceled), the lock is automatically	242	for example when the coroutine gets canceled), the lock is automatically
215	returned.	243	returned.
216		244
217	Lock names should begin with a unique identifier (for example, cf::map::find	245	Lock names should begin with a unique identifier (for example, cf::map::find
218	uses map_find and cf::map::load uses map_load).	246	uses map_find and cf::map::load uses map_load).
		247
		248	=item $locked = cf::lock_active $string
		249
		250	Return true if the lock is currently active, i.e. somebody has locked it.
219		251
220	=cut	252	=cut
221		253
222	our %LOCK;	254	our %LOCK;
223		255
…		…
237	# wait, to be sure we are not locked	269	# wait, to be sure we are not locked
238	lock_wait $key;	270	lock_wait $key;
239		271
240	$LOCK{$key} = [];	272	$LOCK{$key} = [];
241		273
242	cf::guard {	274	Coro::guard {
243	# wake up all waiters, to be on the safe side	275	# wake up all waiters, to be on the safe side
244	$_->ready for @{ delete $LOCK{$key} };	276	$_->ready for @{ delete $LOCK{$key} };
245	}	277	}
246	}	278	}
247		279
248	=item cf::async { BLOCK }	280	sub lock_active($) {
249
250	Like C<Coro::async>, but runs the given BLOCK in an eval and only logs the
251	error instead of exiting the server in case of a problem.
252
253	=cut
254
255	sub async(&) {
256	my ($cb) = @_;	281	my ($key) = @_;
257		282
258	Coro::async {	283	! ! $LOCK{$key}
259	eval { $cb->() };
260	warn $@ if $@;
261	}
262	}	284	}
263		285
264	sub freeze_mainloop {	286	sub freeze_mainloop {
265	return unless $TICK_WATCHER->is_active;	287	return unless $TICK_WATCHER->is_active;
266		288
267	my $guard = guard { $TICK_WATCHER->start };	289	my $guard = Coro::guard {
		290	$TICK_WATCHER->start;
		291	};
268	$TICK_WATCHER->stop;	292	$TICK_WATCHER->stop;
269	$guard	293	$guard
270	}	294	}
		295
		296	=item cf::async { BLOCK }
		297
		298	Currently the same as Coro::async_pool, meaning you cannot use
		299	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		300	thing you are allowed to do is call C<prio> on it.
		301
		302	=cut
		303
		304	BEGIN { *async = \&Coro::async_pool }
271		305
272	=item cf::sync_job { BLOCK }	306	=item cf::sync_job { BLOCK }
273		307
274	The design of crossfire+ requires that the main coro ($Coro::main) is	308	The design of crossfire+ requires that the main coro ($Coro::main) is
275	always able to handle events or runnable, as crossfire+ is only partly	309	always able to handle events or runnable, as crossfire+ is only partly
…		…
294	my $freeze_guard = freeze_mainloop;	328	my $freeze_guard = freeze_mainloop;
295		329
296	my $busy = 1;	330	my $busy = 1;
297	my @res;	331	my @res;
298		332
299	(Coro::async {	333	(async {
300	@res = eval { $job->() };	334	@res = eval { $job->() };
301	warn $@ if $@;	335	warn $@ if $@;
302	undef $busy;	336	undef $busy;
303	})->prio (Coro::PRIO_MAX);	337	})->prio (Coro::PRIO_MAX);
304		338
305	while ($busy) {	339	while ($busy) {
306	Coro::cede_notself;	340	Coro::cede or Event::one_event;
307	Event::one_event unless Coro::nready;
308	}	341	}
309		342
310	wantarray ? @res : $res[0]	343	wantarray ? @res : $res[0]
311	} else {	344	} else {
312	# we are in another coroutine, how wonderful, everything just works	345	# we are in another coroutine, how wonderful, everything just works
313		346
314	$job->()	347	$job->()
315	}	348	}
316	}	349	}
317		350
318	=item $coro = cf::coro { BLOCK }	351	=item $coro = cf::async_ext { BLOCK }
319		352
320	Creates and returns a new coro. This coro is automcatially being canceled	353	Like async, but this coro is automatically being canceled when the
321	when the extension calling this is being unloaded.	354	extension calling this is being unloaded.
322		355
323	=cut	356	=cut
324		357
325	sub coro(&) {	358	sub async_ext(&) {
326	my $cb = shift;	359	my $cb = shift;
327		360
328	my $coro = &cf::async ($cb);	361	my $coro = &Coro::async ($cb);
329		362
330	$coro->on_destroy (sub {	363	$coro->on_destroy (sub {
331	delete $EXT_CORO{$coro+0};	364	delete $EXT_CORO{$coro+0};
332	});	365	});
333	$EXT_CORO{$coro+0} = $coro;	366	$EXT_CORO{$coro+0} = $coro;
334		367
335	$coro	368	$coro
336	}	369	}
337		370
338	sub write_runtime {	371	sub write_runtime {
339	my $runtime = cf::localdir . "/runtime";	372	my $guard = cf::lock_acquire "write_runtime";
		373
		374	my $runtime = "$LOCALDIR/runtime";
340		375
341	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	376	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
342	or return;	377	or return;
343		378
		379	my $value = $cf::RUNTIME + 90 + 10;
344	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	380	# 10 is the runtime save interval, for a monotonic clock
		381	# 60 allows for the watchdog to kill the server.
		382
345	(aio_write $fh, 0, (length $value), $value, 0) <= 0	383	(aio_write $fh, 0, (length $value), $value, 0) <= 0
346	and return;	384	and return;
347		385
		386	# always fsync - this file is important
348	aio_fsync $fh	387	aio_fsync $fh
349	and return;	388	and return;
350		389
351	close $fh	390	close $fh
352	or return;	391	or return;
…		…
355	and return;	394	and return;
356		395
357	1	396	1
358	}	397	}
359		398
		399	=item cf::datalog type => key => value, ...
		400
		401	Log a datalog packet of the given type with the given key-value pairs.
		402
		403	=cut
		404
		405	sub datalog($@) {
		406	my ($type, %kv) = @_;
		407	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
		408	}
		409
360	=back	410	=back
361		411
362	=cut	412	=cut
363
364	#############################################################################
365
366	package cf::path;
367
368	sub new {
369	my ($class, $path, $base) = @_;
370
371	$path = $path->as_string if ref $path;
372
373	my $self = bless { }, $class;
374
375	# {... are special paths that are not touched
376	# ?xxx/... are special absolute paths
377	# ?random/... random maps
378	# /! non-realised random map exit
379	# /... normal maps
380	# ~/... per-player maps without a specific player (DO NOT USE)
381	# ~user/... per-player map of a specific user
382
383	if ($path =~ /^{/) {
384	# fine as it is
385	} elsif ($path =~ s{^\?random/}{}) {
386	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
387	$self->{random} = cf::from_json $data;
388	} else {
389	if ($path =~ s{^~([^/]+)?}{}) {
390	$self->{user_rel} = 1;
391
392	if (defined $1) {
393	$self->{user} = $1;
394	} elsif ($base =~ m{^~([^/]+)/}) {
395	$self->{user} = $1;
396	} else {
397	warn "cannot resolve user-relative path without user <$path,$base>\n";
398	}
399	} elsif ($path =~ /^\//) {
400	# already absolute
401	} else {
402	$base =~ s{[^/]+/?$}{};
403	return $class->new ("$base/$path");
404	}
405
406	for ($path) {
407	redo if s{/\.?/}{/};
408	redo if s{/[^/]+/\.\./}{/};
409	}
410	}
411
412	$self->{path} = $path;
413
414	$self
415	}
416
417	# the name / primary key / in-game path
418	sub as_string {
419	my ($self) = @_;
420
421	$self->{user_rel} ? "~$self->{user}$self->{path}"
422	: $self->{random} ? "?random/$self->{path}"
423	: $self->{path}
424	}
425
426	# the displayed name, this is a one way mapping
427	sub visible_name {
428	my ($self) = @_;
429
430	# if (my $rmp = $self->{random}) {
431	# # todo: be more intelligent about this
432	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
433	# } else {
434	$self->as_string
435	# }
436	}
437
438	# escape the /'s in the path
439	sub _escaped_path {
440	# ∕ is U+2215
441	(my $path = $_[0]{path}) =~ s/\//∕/g;
442	$path
443	}
444
445	# the original (read-only) location
446	sub load_path {
447	my ($self) = @_;
448
449	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
450	}
451
452	# the temporary/swap location
453	sub save_path {
454	my ($self) = @_;
455
456	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
457	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
458	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
459	}
460
461	# the unique path, might be eq to save_path
462	sub uniq_path {
463	my ($self) = @_;
464
465	$self->{user_rel} || $self->{random}
466	? undef
467	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
468	}
469
470	# return random map parameters, or undef
471	sub random_map_params {
472	my ($self) = @_;
473
474	$self->{random}
475	}
476
477	# this is somewhat ugly, but style maps do need special treatment
478	sub is_style_map {
479	$_[0]{path} =~ m{^/styles/}
480	}
481
482	package cf;
483		413
484	#############################################################################	414	#############################################################################
485		415
486	=head2 ATTACHABLE OBJECTS	416	=head2 ATTACHABLE OBJECTS
487		417
…		…
613	our @CB_TYPE = (); # registry for type (cf-object class) based events	543	our @CB_TYPE = (); # registry for type (cf-object class) based events
614	our @CB_MAP = ();	544	our @CB_MAP = ();
615		545
616	my %attachment;	546	my %attachment;
617		547
		548	sub cf::attachable::thawer_merge {
		549	# simply override everything except _meta
		550	local $_[0]{_meta};
		551	%{$_[0]} = %{$_[1]};
		552	}
		553
618	sub _attach_cb($$$$) {	554	sub _attach_cb($$$$) {
619	my ($registry, $event, $prio, $cb) = @_;	555	my ($registry, $event, $prio, $cb) = @_;
620		556
621	use sort 'stable';	557	use sort 'stable';
622		558
…		…
793	# object support	729	# object support
794		730
795	sub reattach {	731	sub reattach {
796	# basically do the same as instantiate, without calling instantiate	732	# basically do the same as instantiate, without calling instantiate
797	my ($obj) = @_;	733	my ($obj) = @_;
		734
		735	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
798		736
799	my $registry = $obj->registry;	737	my $registry = $obj->registry;
800		738
801	@$registry = ();	739	@$registry = ();
802		740
…		…
849	$filename, length $$rdata, scalar @$objs;	787	$filename, length $$rdata, scalar @$objs;
850		788
851	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	789	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
852	chmod SAVE_MODE, $fh;	790	chmod SAVE_MODE, $fh;
853	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	791	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
854	aio_fsync $fh;	792	aio_fsync $fh if $cf::USE_FSYNC;
855	close $fh;	793	close $fh;
856		794
857	if (@$objs) {	795	if (@$objs) {
858	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	796	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
859	chmod SAVE_MODE, $fh;	797	chmod SAVE_MODE, $fh;
860	my $data = Storable::nfreeze { version => 1, objs => $objs };	798	my $data = Storable::nfreeze { version => 1, objs => $objs };
861	aio_write $fh, 0, (length $data), $data, 0;	799	aio_write $fh, 0, (length $data), $data, 0;
862	aio_fsync $fh;	800	aio_fsync $fh if $cf::USE_FSYNC;
863	close $fh;	801	close $fh;
864	aio_rename "$filename.pst~", "$filename.pst";	802	aio_rename "$filename.pst~", "$filename.pst";
865	}	803	}
866	} else {	804	} else {
867	aio_unlink "$filename.pst";	805	aio_unlink "$filename.pst";
…		…
934	=cut	872	=cut
935		873
936	sub register_extcmd {	874	sub register_extcmd {
937	my ($name, $cb) = @_;	875	my ($name, $cb) = @_;
938		876
939	my $caller = caller;
940	#warn "registering extcmd '$name' to '$caller'";
941
942	$EXTCMD{$name} = [$cb, $caller];	877	$EXTCMD{$name} = $cb;
943	}	878	}
944		879
945	cf::player->attach (	880	cf::player->attach (
946	on_command => sub {	881	on_command => sub {
947	my ($pl, $name, $params) = @_;	882	my ($pl, $name, $params) = @_;
…		…
960		895
961	my $msg = eval { from_json $buf };	896	my $msg = eval { from_json $buf };
962		897
963	if (ref $msg) {	898	if (ref $msg) {
964	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	899	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
965	if (my %reply = $cb->[0]->($pl, $msg)) {	900	if (my %reply = $cb->($pl, $msg)) {
966	$pl->ext_reply ($msg->{msgid}, %reply);	901	$pl->ext_reply ($msg->{msgid}, %reply);
967	}	902	}
968	}	903	}
969	} else {	904	} else {
970	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	905	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
972		907
973	cf::override;	908	cf::override;
974	},	909	},
975	);	910	);
976		911
977	sub register {
978	my ($base, $pkg) = @_;
979
980	#TODO
981	}
982
983	sub load_extension {	912	sub load_extension {
984	my ($path) = @_;	913	my ($path) = @_;
985		914
986	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	915	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
987	my $base = $1;	916	my $base = $1;
988	my $pkg = $1;	917	my $pkg = $1;
989	$pkg =~ s/[^[:word:]]/_/g;	918	$pkg =~ s/[^[:word:]]/_/g;
990	$pkg = "ext::$pkg";	919	$pkg = "ext::$pkg";
991		920
992	warn "loading '$path' into '$pkg'\n";	921	warn "... loading '$path' into '$pkg'\n";
993		922
994	open my $fh, "<:utf8", $path	923	open my $fh, "<:utf8", $path
995	or die "$path: $!";	924	or die "$path: $!";
996		925
997	my $source =	926	my $source =
998	"package $pkg; use strict; use utf8;\n"	927	"package $pkg; use strict; use utf8;\n"
999	. "#line 1 \"$path\"\n{\n"	928	. "#line 1 \"$path\"\n{\n"
1000	. (do { local $/; <$fh> })	929	. (do { local $/; <$fh> })
1001	. "\n};\n1";	930	. "\n};\n1";
1002		931
1003	eval $source	932	unless (eval $source) {
1004	or die $@ ? "$path: $@\n"	933	my $msg = $@ ? "$path: $@\n"
1005	: "extension disabled.\n";	934	: "extension disabled.\n";
1006		935	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
1007	push @exts, $pkg;	936	warn $@;
1008	$ext_pkg{$base} = $pkg;	937	warn "mandatory extension failed to load, exiting.\n";
1009		938	exit 1;
1010	# no strict 'refs';	939	}
1011	# @{"$pkg\::ISA"} = ext::;	940	die $@;
1012
1013	register $base, $pkg;
1014	}
1015
1016	sub unload_extension {
1017	my ($pkg) = @_;
1018
1019	warn "removing extension $pkg\n";
1020
1021	# remove hooks
1022	#TODO
1023	# for my $idx (0 .. $#PLUGIN_EVENT) {
1024	# delete $hook[$idx]{$pkg};
1025	# }	941	}
1026		942
1027	# remove commands	943	push @EXTS, $pkg;
1028	for my $name (keys %COMMAND) {
1029	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1030
1031	if (@cb) {
1032	$COMMAND{$name} = \@cb;
1033	} else {
1034	delete $COMMAND{$name};
1035	}
1036	}
1037
1038	# remove extcmds
1039	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1040	delete $EXTCMD{$name};
1041	}
1042
1043	if (my $cb = $pkg->can ("unload")) {
1044	eval {
1045	$cb->($pkg);
1046	1
1047	} or warn "$pkg unloaded, but with errors: $@";
1048	}
1049
1050	Symbol::delete_package $pkg;
1051	}	944	}
1052		945
1053	sub load_extensions {	946	sub load_extensions {
1054	for my $ext (<$LIBDIR/*.ext>) {	947	for my $ext (<$LIBDIR/*.ext>) {
1055	next unless -r $ext;	948	next unless -r $ext;
…		…
1059	} or warn "$ext not loaded: $@";	952	} or warn "$ext not loaded: $@";
1060	}	953	}
1061	}	954	}
1062		955
1063	#############################################################################	956	#############################################################################
1064	# load/save/clean perl data associated with a map
1065
1066	*cf::mapsupport::on_clean = sub {
1067	my ($map) = @_;
1068
1069	my $path = $map->tmpname;
1070	defined $path or return;
1071
1072	unlink "$path.pst";
1073	};
1074
1075	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1076
1077	#############################################################################
1078	# load/save perl data associated with player->ob objects
1079
1080	sub all_objects(@) {
1081	@_, map all_objects ($_->inv), @_
1082	}
1083
1084	# TODO: compatibility cruft, remove when no longer needed
1085	cf::player->attach (
1086	on_load => sub {
1087	my ($pl, $path) = @_;
1088
1089	for my $o (all_objects $pl->ob) {
1090	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1091	$o->set_ob_key_value ("_perl_data");
1092
1093	%$o = %{ Storable::thaw pack "H*", $value };
1094	}
1095	}
1096	},
1097	);
1098
1099	#############################################################################
1100		957
1101	=head2 CORE EXTENSIONS	958	=head2 CORE EXTENSIONS
1102		959
1103	Functions and methods that extend core crossfire objects.	960	Functions and methods that extend core crossfire objects.
1104		961
		962	=cut
		963
		964	package cf::player;
		965
		966	use Coro::AIO;
		967
1105	=head3 cf::player	968	=head3 cf::player
1106		969
1107	=over 4	970	=over 4
1108		971
1109	=item cf::player::exists $login	972	=item cf::player::find $login
1110		973
1111	Returns true when the given account exists.	974	Returns the given player object, loading it if necessary (might block).
1112		975
1113	=cut	976	=cut
1114		977
1115	sub cf::player::exists($) {	978	sub playerdir($) {
1116	cf::player::find $_[0]	979	"$PLAYERDIR/"
1117	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	980	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1118	}	981	}
1119		982
		983	sub path($) {
		984	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		985
		986	(playerdir $login) . "/playerdata"
		987	}
		988
		989	sub find_active($) {
		990	$cf::PLAYER{$_[0]}
		991	and $cf::PLAYER{$_[0]}->active
		992	and $cf::PLAYER{$_[0]}
		993	}
		994
		995	sub exists($) {
		996	my ($login) = @_;
		997
		998	$cf::PLAYER{$login}
		999	or cf::sync_job { !aio_stat path $login }
		1000	}
		1001
		1002	sub find($) {
		1003	return $cf::PLAYER{$_[0]} || do {
		1004	my $login = $_[0];
		1005
		1006	my $guard = cf::lock_acquire "user_find:$login";
		1007
		1008	$cf::PLAYER{$_[0]} || do {
		1009	# rename old playerfiles to new ones
		1010	#TODO: remove when no longer required
		1011	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1012	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1013	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1014	aio_unlink +(playerdir $login) . "/$login.pl";
		1015
		1016	my $pl = load_pl path $login
		1017	or return;
		1018	$cf::PLAYER{$login} = $pl
		1019	}
		1020	}
		1021	}
		1022
		1023	sub save($) {
		1024	my ($pl) = @_;
		1025
		1026	return if $pl->{deny_save};
		1027
		1028	my $path = path $pl;
		1029	my $guard = cf::lock_acquire "user_save:$path";
		1030
		1031	return if $pl->{deny_save};
		1032
		1033	aio_mkdir playerdir $pl, 0770;
		1034	$pl->{last_save} = $cf::RUNTIME;
		1035
		1036	$pl->save_pl ($path);
		1037	Coro::cede;
		1038	}
		1039
		1040	sub new($) {
		1041	my ($login) = @_;
		1042
		1043	my $self = create;
		1044
		1045	$self->ob->name ($login);
		1046	$self->{deny_save} = 1;
		1047
		1048	$cf::PLAYER{$login} = $self;
		1049
		1050	$self
		1051	}
		1052
		1053	=item $pl->quit_character
		1054
		1055	Nukes the player without looking back. If logged in, the connection will
		1056	be destroyed. May block for a long time.
		1057
		1058	=cut
		1059
		1060	sub quit_character {
		1061	my ($pl) = @_;
		1062
		1063	my $name = $pl->ob->name;
		1064
		1065	$pl->{deny_save} = 1;
		1066	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1067
		1068	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1069	$pl->deactivate;
		1070	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1071	$pl->ns->destroy if $pl->ns;
		1072
		1073	my $path = playerdir $pl;
		1074	my $temp = "$path~$cf::RUNTIME~deleting~";
		1075	aio_rename $path, $temp;
		1076	delete $cf::PLAYER{$pl->ob->name};
		1077	$pl->destroy;
		1078
		1079	my $prefix = qr<^~\Q$name\E/>;
		1080
		1081	# nuke player maps
		1082	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1083
		1084	IO::AIO::aio_rmtree $temp;
		1085	}
		1086
		1087	=item $pl->kick
		1088
		1089	Kicks a player out of the game. This destroys the connection.
		1090
		1091	=cut
		1092
		1093	sub kick {
		1094	my ($pl, $kicker) = @_;
		1095
		1096	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1097	$pl->killer ("kicked");
		1098	$pl->ns->destroy;
		1099	}
		1100
		1101	=item cf::player::list_logins
		1102
		1103	Returns am arrayref of all valid playernames in the system, can take a
		1104	while and may block, so not sync_job-capable, ever.
		1105
		1106	=cut
		1107
		1108	sub list_logins {
		1109	my $dirs = aio_readdir $PLAYERDIR
		1110	or return [];
		1111
		1112	my @logins;
		1113
		1114	for my $login (@$dirs) {
		1115	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1116	aio_read $fh, 0, 512, my $buf, 0 or next;
		1117	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1118
		1119	utf8::decode $login;
		1120	push @logins, $login;
		1121	}
		1122
		1123	\@logins
		1124	}
		1125
		1126	=item $player->maps
		1127
		1128	Returns an arrayref of map paths that are private for this
		1129	player. May block.
		1130
		1131	=cut
		1132
		1133	sub maps($) {
		1134	my ($pl) = @_;
		1135
		1136	$pl = ref $pl ? $pl->ob->name : $pl;
		1137
		1138	my $files = aio_readdir playerdir $pl
		1139	or return;
		1140
		1141	my @paths;
		1142
		1143	for (@$files) {
		1144	utf8::decode $_;
		1145	next if /\.(?:pl|pst)$/;
		1146	next unless /^$PATH_SEP/o;
		1147
		1148	push @paths, cf::map::normalise "~$pl/$_";
		1149	}
		1150
		1151	\@paths
		1152	}
		1153
1120	=item $player->ext_reply ($msgid, $msgtype, %msg)	1154	=item $player->ext_reply ($msgid, %msg)
1121		1155
1122	Sends an ext reply to the player.	1156	Sends an ext reply to the player.
1123		1157
1124	=cut	1158	=cut
1125		1159
1126	sub cf::player::ext_reply($$$%) {	1160	sub ext_reply($$%) {
1127	my ($self, $id, %msg) = @_;	1161	my ($self, $id, %msg) = @_;
1128		1162
1129	$msg{msgid} = $id;	1163	$msg{msgid} = $id;
1130		1164
1131	$self->send ("ext " . to_json \%msg);	1165	$self->send ("ext " . cf::to_json \%msg);
		1166	}
		1167
		1168	=item $player->ext_event ($type, %msg)
		1169
		1170	Sends an ext event to the client.
		1171
		1172	=cut
		1173
		1174	sub ext_event($$%) {
		1175	my ($self, $type, %msg) = @_;
		1176
		1177	$self->ns->ext_event ($type, %msg);
		1178	}
		1179
		1180	=head3 cf::region
		1181
		1182	=over 4
		1183
		1184	=cut
		1185
		1186	package cf::region;
		1187
		1188	=item cf::region::find_by_path $path
		1189
		1190	Tries to decuce the probable region for a map knowing only its path.
		1191
		1192	=cut
		1193
		1194	sub find_by_path($) {
		1195	my ($path) = @_;
		1196
		1197	my ($match, $specificity);
		1198
		1199	for my $region (list) {
		1200	if ($region->match && $path =~ $region->match) {
		1201	($match, $specificity) = ($region, $region->specificity)
		1202	if $region->specificity > $specificity;
		1203	}
		1204	}
		1205
		1206	$match
1132	}	1207	}
1133		1208
1134	=back	1209	=back
1135
1136		1210
1137	=head3 cf::map	1211	=head3 cf::map
1138		1212
1139	=over 4	1213	=over 4
1140		1214
…		…
1143	package cf::map;	1217	package cf::map;
1144		1218
1145	use Fcntl;	1219	use Fcntl;
1146	use Coro::AIO;	1220	use Coro::AIO;
1147		1221
		1222	use overload
		1223	'""' => \&as_string,
		1224	fallback => 1;
		1225
1148	our $MAX_RESET = 3600;	1226	our $MAX_RESET = 3600;
1149	our $DEFAULT_RESET = 3000;	1227	our $DEFAULT_RESET = 3000;
1150		1228
1151	sub generate_random_map {	1229	sub generate_random_map {
1152	my ($path, $rmp) = @_;	1230	my ($self, $rmp) = @_;
1153
1154	# mit "rum" bekleckern, nicht	1231	# mit "rum" bekleckern, nicht
1155	cf::map::_create_random_map	1232	$self->_create_random_map (
1156	$path,
1157	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1233	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1158	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1234	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1159	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1235	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1160	$rmp->{exit_on_final_map},	1236	$rmp->{exit_on_final_map},
1161	$rmp->{xsize}, $rmp->{ysize},	1237	$rmp->{xsize}, $rmp->{ysize},
1162	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1238	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1163	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1239	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1164	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1240	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1165	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1241	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1166	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1242	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1167	(cf::region::find $rmp->{region})	1243	(cf::region::find $rmp->{region}), $rmp->{custom}
		1244	)
		1245	}
		1246
		1247	=item cf::map->register ($regex, $prio)
		1248
		1249	Register a handler for the map path matching the given regex at the
		1250	givne priority (higher is better, built-in handlers have priority 0, the
		1251	default).
		1252
		1253	=cut
		1254
		1255	sub register {
		1256	my (undef, $regex, $prio) = @_;
		1257	my $pkg = caller;
		1258
		1259	no strict;
		1260	push @{"$pkg\::ISA"}, __PACKAGE__;
		1261
		1262	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1263	}
		1264
		1265	# also paths starting with '/'
		1266	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1267
		1268	sub thawer_merge {
		1269	my ($self, $merge) = @_;
		1270
		1271	# we have to keep some variables in memory intact
		1272	local $self->{path};
		1273	local $self->{load_path};
		1274	local $self->{deny_save};
		1275	local $self->{deny_reset};
		1276
		1277	$self->SUPER::thawer_merge ($merge);
		1278	}
		1279
		1280	sub normalise {
		1281	my ($path, $base) = @_;
		1282
		1283	$path = "$path"; # make sure its a string
		1284
		1285	$path =~ s/\.map$//;
		1286
		1287	# map plan:
		1288	#
		1289	# /! non-realised random map exit (special hack!)
		1290	# {... are special paths that are not being touched
		1291	# ?xxx/... are special absolute paths
		1292	# ?random/... random maps
		1293	# /... normal maps
		1294	# ~user/... per-player map of a specific user
		1295
		1296	$path =~ s/$PATH_SEP/\//go;
		1297
		1298	# treat it as relative path if it starts with
		1299	# something that looks reasonable
		1300	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1301	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1302
		1303	$base =~ s{[^/]+/?$}{};
		1304	$path = "$base/$path";
		1305	}
		1306
		1307	for ($path) {
		1308	redo if s{//}{/};
		1309	redo if s{/\.?/}{/};
		1310	redo if s{/[^/]+/\.\./}{/};
		1311	}
		1312
		1313	$path
		1314	}
		1315
		1316	sub new_from_path {
		1317	my (undef, $path, $base) = @_;
		1318
		1319	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1320
		1321	$path = normalise $path, $base;
		1322
		1323	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1324	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1325	my $self = bless cf::map::new, $pkg;
		1326	$self->{path} = $path; $self->path ($path);
		1327	$self->init; # pass $1 etc.
		1328	return $self;
		1329	}
		1330	}
		1331
		1332	Carp::carp "unable to resolve path '$path' (base '$base').";
		1333	()
		1334	}
		1335
		1336	sub init {
		1337	my ($self) = @_;
		1338
		1339	$self
		1340	}
		1341
		1342	sub as_string {
		1343	my ($self) = @_;
		1344
		1345	"$self->{path}"
		1346	}
		1347
		1348	# the displayed name, this is a one way mapping
		1349	sub visible_name {
		1350	&as_string
		1351	}
		1352
		1353	# the original (read-only) location
		1354	sub load_path {
		1355	my ($self) = @_;
		1356
		1357	"$MAPDIR/$self->{path}.map"
		1358	}
		1359
		1360	# the temporary/swap location
		1361	sub save_path {
		1362	my ($self) = @_;
		1363
		1364	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1365	"$TMPDIR/$path.map"
		1366	}
		1367
		1368	# the unique path, undef == no special unique path
		1369	sub uniq_path {
		1370	my ($self) = @_;
		1371
		1372	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1373	"$UNIQUEDIR/$path"
1168	}	1374	}
1169		1375
1170	# and all this just because we cannot iterate over	1376	# and all this just because we cannot iterate over
1171	# all maps in C++...	1377	# all maps in C++...
1172	sub change_all_map_light {	1378	sub change_all_map_light {
…		…
1174		1380
1175	$_->change_map_light ($change)	1381	$_->change_map_light ($change)
1176	for grep $_->outdoor, values %cf::MAP;	1382	for grep $_->outdoor, values %cf::MAP;
1177	}	1383	}
1178		1384
		1385	sub unlink_save {
		1386	my ($self) = @_;
		1387
		1388	utf8::encode (my $save = $self->save_path);
		1389	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1390	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1391	}
		1392
1179	sub try_load_header($) {	1393	sub load_header_from($) {
1180	my ($path) = @_;	1394	my ($self, $path) = @_;
1181		1395
1182	utf8::encode $path;	1396	utf8::encode $path;
1183	aio_open $path, O_RDONLY, 0	1397	#aio_open $path, O_RDONLY, 0
		1398	# or return;
		1399
		1400	$self->_load_header ($path)
1184	or return;	1401	or return;
1185		1402
1186	my $map = cf::map::new	1403	$self->{load_path} = $path;
		1404
		1405	1
		1406	}
		1407
		1408	sub load_header_orig {
		1409	my ($self) = @_;
		1410
		1411	$self->load_header_from ($self->load_path)
		1412	}
		1413
		1414	sub load_header_temp {
		1415	my ($self) = @_;
		1416
		1417	$self->load_header_from ($self->save_path)
		1418	}
		1419
		1420	sub prepare_temp {
		1421	my ($self) = @_;
		1422
		1423	$self->last_access ((delete $self->{last_access})
		1424	|| $cf::RUNTIME); #d#
		1425	# safety
		1426	$self->{instantiate_time} = $cf::RUNTIME
		1427	if $self->{instantiate_time} > $cf::RUNTIME;
		1428	}
		1429
		1430	sub prepare_orig {
		1431	my ($self) = @_;
		1432
		1433	$self->{load_original} = 1;
		1434	$self->{instantiate_time} = $cf::RUNTIME;
		1435	$self->last_access ($cf::RUNTIME);
		1436	$self->instantiate;
		1437	}
		1438
		1439	sub load_header {
		1440	my ($self) = @_;
		1441
		1442	if ($self->load_header_temp) {
		1443	$self->prepare_temp;
		1444	} else {
		1445	$self->load_header_orig
1187	or return;	1446	or return;
		1447	$self->prepare_orig;
		1448	}
1188		1449
1189	$map->load_header ($path)	1450	$self->default_region (cf::region::find_by_path $self->{path})
1190	or return;	1451	unless $self->default_region;
1191		1452
1192	$map->{load_path} = $path;	1453	1
1193
1194	$map
1195	}	1454	}
1196		1455
1197	sub find;	1456	sub find;
1198	sub find {	1457	sub find {
1199	my ($path, $origin) = @_;	1458	my ($path, $origin) = @_;
1200		1459
1201	#warn "find<$path,$origin>\n";#d#
1202
1203	$path = new cf::path $path, $origin && $origin->path;	1460	$path = normalise $path, $origin && $origin->path;
1204	my $key = $path->as_string;
1205		1461
1206	cf::lock_wait "map_find:$key";	1462	cf::lock_wait "map_find:$path";
1207		1463
1208	$cf::MAP{$key} || do {	1464	$cf::MAP{$path} || do {
1209	my $guard = cf::lock_acquire "map_find:$key";	1465	my $guard = cf::lock_acquire "map_find:$path";
1210		1466	my $map = new_from_path cf::map $path
1211	# do it the slow way
1212	my $map = try_load_header $path->save_path;
1213
1214	if ($map) {
1215	$map->last_access ((delete $map->{last_access})
1216	|| $cf::RUNTIME); #d#
1217	# safety
1218	$map->{instantiate_time} = $cf::RUNTIME
1219	if $map->{instantiate_time} > $cf::RUNTIME;
1220	} else {
1221	if (my $rmp = $path->random_map_params) {
1222	$map = generate_random_map $key, $rmp;
1223	} else {
1224	$map = try_load_header $path->load_path;
1225	}
1226
1227	$map or return;	1467	or return;
1228		1468
1229	$map->{load_original} = 1;
1230	$map->{instantiate_time} = $cf::RUNTIME;
1231	$map->last_access ($cf::RUNTIME);
1232	$map->instantiate;
1233
1234	# per-player maps become, after loading, normal maps
1235	$map->per_player (0) if $path->{user_rel};
1236	}
1237
1238	$map->path ($key);
1239	$map->{path} = $path;
1240	$map->{last_save} = $cf::RUNTIME;	1469	$map->{last_save} = $cf::RUNTIME;
1241		1470
1242	if ($map->should_reset) {	1471	$map->load_header
		1472	or return;
		1473
		1474	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)
		1475	# doing this can freeze the server in a sync job, obviously
		1476	#$cf::WAIT_FOR_TICK->wait;
1243	$map->reset;	1477	$map->reset;
1244	undef $guard;	1478	undef $guard;
1245	$map = find $path	1479	return find $path;
1246	or return;
1247	}	1480	}
1248		1481
1249	$cf::MAP{$key} = $map	1482	$cf::MAP{$path} = $map
1250	}	1483	}
1251	}	1484	}
		1485
		1486	sub pre_load { }
		1487	sub post_load { }
1252		1488
1253	sub load {	1489	sub load {
1254	my ($self) = @_;	1490	my ($self) = @_;
1255		1491
		1492	local $self->{deny_reset} = 1; # loading can take a long time
		1493
1256	my $path = $self->{path};	1494	my $path = $self->{path};
1257	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1495	my $guard = cf::lock_acquire "map_load:$path";
1258		1496
1259	return if $self->in_memory != cf::MAP_SWAPPED;	1497	return if $self->in_memory != cf::MAP_SWAPPED;
1260		1498
1261	$self->in_memory (cf::MAP_LOADING);	1499	$self->in_memory (cf::MAP_LOADING);
1262		1500
1263	$self->alloc;	1501	$self->alloc;
		1502
		1503	$self->pre_load;
		1504	Coro::cede;
		1505
1264	$self->load_objects ($self->{load_path}, 1)	1506	$self->_load_objects ($self->{load_path}, 1)
1265	or return;	1507	or return;
1266		1508
1267	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1509	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1268	if delete $self->{load_original};	1510	if delete $self->{load_original};
1269		1511
1270	if (my $uniq = $path->uniq_path) {	1512	if (my $uniq = $self->uniq_path) {
1271	utf8::encode $uniq;	1513	utf8::encode $uniq;
1272	if (aio_open $uniq, O_RDONLY, 0) {	1514	if (aio_open $uniq, O_RDONLY, 0) {
1273	$self->clear_unique_items;	1515	$self->clear_unique_items;
1274	$self->load_objects ($uniq, 0);	1516	$self->_load_objects ($uniq, 0);
1275	}	1517	}
1276	}	1518	}
1277		1519
		1520	Coro::cede;
1278	# now do the right thing for maps	1521	# now do the right thing for maps
1279	$self->link_multipart_objects;	1522	$self->link_multipart_objects;
		1523	Coro::cede;
1280		1524
1281	if ($self->{path}->is_style_map) {	1525	unless ($self->{deny_activate}) {
1282	$self->{deny_save} = 1;	1526	$self->decay_objects;
1283	$self->{deny_reset} = 1;
1284	} else {
1285	$self->fix_auto_apply;	1527	$self->fix_auto_apply;
1286	$self->decay_objects;
1287	$self->update_buttons;	1528	$self->update_buttons;
		1529	Coro::cede;
1288	$self->set_darkness_map;	1530	$self->set_darkness_map;
1289	$self->difficulty ($self->estimate_difficulty)	1531	$self->difficulty ($self->estimate_difficulty)
1290	unless $self->difficulty;	1532	unless $self->difficulty;
		1533	Coro::cede;
1291	$self->activate;	1534	$self->activate;
		1535	Coro::cede;
1292	}	1536	}
		1537
		1538	$self->post_load;
		1539	Coro::cede;
1293		1540
1294	$self->in_memory (cf::MAP_IN_MEMORY);	1541	$self->in_memory (cf::MAP_IN_MEMORY);
		1542	}
		1543
		1544	sub customise_for {
		1545	my ($self, $ob) = @_;
		1546
		1547	return find "~" . $ob->name . "/" . $self->{path}
		1548	if $self->per_player;
		1549
		1550	$self
		1551	}
		1552
		1553	# find and load all maps in the 3x3 area around a map
		1554	sub load_diag {
		1555	my ($map) = @_;
		1556
		1557	my @diag; # diagonal neighbours
		1558
		1559	for (0 .. 3) {
		1560	my $neigh = $map->tile_path ($_)
		1561	or next;
		1562	$neigh = find $neigh, $map
		1563	or next;
		1564	$neigh->load;
		1565
		1566	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1567	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1568	}
		1569
		1570	for (@diag) {
		1571	my $neigh = find @$_
		1572	or next;
		1573	$neigh->load;
		1574	}
1295	}	1575	}
1296		1576
1297	sub find_sync {	1577	sub find_sync {
1298	my ($path, $origin) = @_;	1578	my ($path, $origin) = @_;
1299		1579
1300	cf::sync_job { cf::map::find $path, $origin }	1580	cf::sync_job { find $path, $origin }
1301	}	1581	}
1302		1582
1303	sub do_load_sync {	1583	sub do_load_sync {
1304	my ($map) = @_;	1584	my ($map) = @_;
1305		1585
1306	cf::sync_job { $map->load };	1586	cf::sync_job { $map->load };
1307	}	1587	}
1308		1588
		1589	our %MAP_PREFETCH;
		1590	our $MAP_PREFETCHER = undef;
		1591
		1592	sub find_async {
		1593	my ($path, $origin) = @_;
		1594
		1595	$path = normalise $path, $origin && $origin->{path};
		1596
		1597	if (my $map = $cf::MAP{$path}) {
		1598	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1599	}
		1600
		1601	undef $MAP_PREFETCH{$path};
		1602	$MAP_PREFETCHER ||= cf::async {
		1603	while (%MAP_PREFETCH) {
		1604	for my $path (keys %MAP_PREFETCH) {
		1605	my $map = find $path
		1606	or next;
		1607	$map->load;
		1608
		1609	delete $MAP_PREFETCH{$path};
		1610	}
		1611	}
		1612	undef $MAP_PREFETCHER;
		1613	};
		1614	$MAP_PREFETCHER->prio (6);
		1615
		1616	()
		1617	}
		1618
1309	sub save {	1619	sub save {
1310	my ($self) = @_;	1620	my ($self) = @_;
1311		1621
		1622	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1623
1312	$self->{last_save} = $cf::RUNTIME;	1624	$self->{last_save} = $cf::RUNTIME;
1313		1625
1314	return unless $self->dirty;	1626	return unless $self->dirty;
1315		1627
1316	my $save = $self->{path}->save_path; utf8::encode $save;	1628	my $save = $self->save_path; utf8::encode $save;
1317	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	1629	my $uniq = $self->uniq_path; utf8::encode $uniq;
1318		1630
1319	$self->{load_path} = $save;	1631	$self->{load_path} = $save;
1320		1632
1321	return if $self->{deny_save};	1633	return if $self->{deny_save};
1322		1634
1323	local $self->{last_access} = $self->last_access;#d#	1635	local $self->{last_access} = $self->last_access;#d#
1324		1636
		1637	cf::async {
		1638	$_->contr->save for $self->players;
		1639	};
		1640
1325	if ($uniq) {	1641	if ($uniq) {
1326	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1642	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1327	$self->save_objects ($uniq, cf::IO_UNIQUES);	1643	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1328	} else {	1644	} else {
1329	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1645	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1330	}	1646	}
1331	}	1647	}
1332		1648
1333	sub swap_out {	1649	sub swap_out {
1334	my ($self) = @_;	1650	my ($self) = @_;
1335		1651
1336	# save first because save cedes	1652	# save first because save cedes
1337	$self->save;	1653	$self->save;
		1654
		1655	my $lock = cf::lock_acquire "map_data:" . $self->path;
1338		1656
1339	return if $self->players;	1657	return if $self->players;
1340	return if $self->in_memory != cf::MAP_IN_MEMORY;	1658	return if $self->in_memory != cf::MAP_IN_MEMORY;
1341	return if $self->{deny_save};	1659	return if $self->{deny_save};
1342		1660
…		…
1346		1664
1347	sub reset_at {	1665	sub reset_at {
1348	my ($self) = @_;	1666	my ($self) = @_;
1349		1667
1350	# TODO: safety, remove and allow resettable per-player maps	1668	# TODO: safety, remove and allow resettable per-player maps
1351	return 1e99 if $self->{path}{user_rel};	1669	return 1e99 if $self->isa ("ext::map_per_player");#d#
1352	return 1e99 if $self->{deny_reset};	1670	return 1e99 if $self->{deny_reset};
1353		1671
1354	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1672	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1355	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1673	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1356		1674
…		…
1361	my ($self) = @_;	1679	my ($self) = @_;
1362		1680
1363	$self->reset_at <= $cf::RUNTIME	1681	$self->reset_at <= $cf::RUNTIME
1364	}	1682	}
1365		1683
1366	sub unlink_save {
1367	my ($self) = @_;
1368
1369	utf8::encode (my $save = $self->{path}->save_path);
1370	aioreq_pri 3; IO::AIO::aio_unlink $save;
1371	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1372	}
1373
1374	sub rename {
1375	my ($self, $new_path) = @_;
1376
1377	$self->unlink_save;
1378
1379	delete $cf::MAP{$self->path};
1380	$self->{path} = new cf::path $new_path;
1381	$self->path ($self->{path}->as_string);
1382	$cf::MAP{$self->path} = $self;
1383
1384	$self->save;
1385	}
1386
1387	sub reset {	1684	sub reset {
1388	my ($self) = @_;	1685	my ($self) = @_;
1389		1686
		1687	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1688
1390	return if $self->players;	1689	return if $self->players;
1391	return if $self->{path}{user_rel};#d#	1690	return if $self->isa ("ext::map_per_player");#d#
1392		1691
1393	warn "resetting map ", $self->path;#d#	1692	warn "resetting map ", $self->path;#d#
1394		1693
		1694	$self->in_memory (cf::MAP_SWAPPED);
		1695
		1696	# need to save uniques path
		1697	unless ($self->{deny_save}) {
		1698	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1699
		1700	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		1701	if $uniq;
		1702	}
		1703
1395	delete $cf::MAP{$self->path};	1704	delete $cf::MAP{$self->path};
		1705
		1706	$self->clear;
1396		1707
1397	$_->clear_links_to ($self) for values %cf::MAP;	1708	$_->clear_links_to ($self) for values %cf::MAP;
1398		1709
1399	$self->unlink_save;	1710	$self->unlink_save;
1400	$self->destroy;	1711	$self->destroy;
…		…
1403	my $nuke_counter = "aaaa";	1714	my $nuke_counter = "aaaa";
1404		1715
1405	sub nuke {	1716	sub nuke {
1406	my ($self) = @_;	1717	my ($self) = @_;
1407		1718
		1719	delete $cf::MAP{$self->path};
		1720
		1721	$self->unlink_save;
		1722
		1723	bless $self, "cf::map";
		1724	delete $self->{deny_reset};
1408	$self->{deny_save} = 1;	1725	$self->{deny_save} = 1;
1409	$self->reset_timeout (1);	1726	$self->reset_timeout (1);
1410	$self->rename ("{nuke}/" . ($nuke_counter++));	1727	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1728
		1729	$cf::MAP{$self->path} = $self;
		1730
1411	$self->reset; # polite request, might not happen	1731	$self->reset; # polite request, might not happen
1412	}	1732	}
1413		1733
1414	sub customise_for {	1734	=item cf::map::unique_maps
1415	my ($map, $ob) = @_;
1416		1735
1417	if ($map->per_player) {	1736	Returns an arrayref of paths of all shared maps that have
1418	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	1737	instantiated unique items. May block.
1419	}
1420		1738
1421	$map	1739	=cut
1422	}
1423		1740
1424	sub emergency_save {	1741	sub unique_maps() {
1425	my $freeze_guard = cf::freeze_mainloop;	1742	my $files = aio_readdir $UNIQUEDIR
		1743	or return;
1426		1744
1427	warn "enter emergency map save\n";	1745	my @paths;
1428		1746
1429	cf::sync_job {	1747	for (@$files) {
1430	warn "begin emergency map save\n";	1748	utf8::decode $_;
1431	$_->save for values %cf::MAP;	1749	next if /\.pst$/;
		1750	next unless /^$PATH_SEP/o;
		1751
		1752	push @paths, cf::map::normalise $_;
1432	};	1753	}
1433		1754
1434	warn "end emergency map save\n";	1755	\@paths
1435	}	1756	}
1436		1757
1437	package cf;	1758	package cf;
1438		1759
1439	=back	1760	=back
1440		1761
		1762	=head3 cf::object
		1763
		1764	=cut
		1765
		1766	package cf::object;
		1767
		1768	=over 4
		1769
		1770	=item $ob->inv_recursive
		1771
		1772	Returns the inventory of the object _and_ their inventories, recursively.
		1773
		1774	=cut
		1775
		1776	sub inv_recursive_;
		1777	sub inv_recursive_ {
		1778	map { $_, inv_recursive_ $_->inv } @_
		1779	}
		1780
		1781	sub inv_recursive {
		1782	inv_recursive_ inv $_[0]
		1783	}
		1784
		1785	package cf;
		1786
		1787	=back
1441		1788
1442	=head3 cf::object::player	1789	=head3 cf::object::player
1443		1790
1444	=over 4	1791	=over 4
1445		1792
…		…
1485		1832
1486	=item $player_object->enter_link	1833	=item $player_object->enter_link
1487		1834
1488	Freezes the player and moves him/her to a special map (C<{link}>).	1835	Freezes the player and moves him/her to a special map (C<{link}>).
1489		1836
1490	The player should be reaosnably safe there for short amounts of time. You	1837	The player should be reasonably safe there for short amounts of time. You
1491	I<MUST> call C<leave_link> as soon as possible, though.	1838	I<MUST> call C<leave_link> as soon as possible, though.
1492		1839
		1840	Will never block.
		1841
1493	=item $player_object->leave_link ($map, $x, $y)	1842	=item $player_object->leave_link ($map, $x, $y)
1494		1843
1495	Moves the player out of the specila link map onto the given map. If the	1844	Moves the player out of the special C<{link}> map onto the specified
1496	map is not valid (or omitted), the player will be moved back to the	1845	map. If the map is not valid (or omitted), the player will be moved back
1497	location he/she was before the call to C<enter_link>, or, if that fails,	1846	to the location he/she was before the call to C<enter_link>, or, if that
1498	to the emergency map position.	1847	fails, to the emergency map position.
1499		1848
1500	Might block.	1849	Might block.
1501		1850
1502	=cut	1851	=cut
		1852
		1853	sub link_map {
		1854	unless ($LINK_MAP) {
		1855	$LINK_MAP = cf::map::find "{link}"
		1856	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		1857	$LINK_MAP->load;
		1858	}
		1859
		1860	$LINK_MAP
		1861	}
1503		1862
1504	sub cf::object::player::enter_link {	1863	sub cf::object::player::enter_link {
1505	my ($self) = @_;	1864	my ($self) = @_;
1506		1865
1507	$self->deactivate_recursive;	1866	$self->deactivate_recursive;
1508		1867
1509	return if $self->map == $LINK_MAP;	1868	return if UNIVERSAL::isa $self->map, "ext::map_link";
1510		1869
1511	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	1870	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1512	if $self->map;	1871	if $self->map;
1513		1872
1514	$self->enter_map ($LINK_MAP, 20, 20);	1873	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1515	}	1874	}
1516		1875
1517	sub cf::object::player::leave_link {	1876	sub cf::object::player::leave_link {
1518	my ($self, $map, $x, $y) = @_;	1877	my ($self, $map, $x, $y) = @_;
1519		1878
…		…
1537	# use -1 or undef as default coordinates, not 0, 0	1896	# use -1 or undef as default coordinates, not 0, 0
1538	($x, $y) = ($map->enter_x, $map->enter_y)	1897	($x, $y) = ($map->enter_x, $map->enter_y)
1539	if $x <=0 && $y <= 0;	1898	if $x <=0 && $y <= 0;
1540		1899
1541	$map->load;	1900	$map->load;
		1901	$map->load_diag;
1542		1902
		1903	return unless $self->contr->active;
1543	$self->activate_recursive;	1904	$self->activate_recursive;
		1905
		1906	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1544	$self->enter_map ($map, $x, $y);	1907	$self->enter_map ($map, $x, $y);
1545	}	1908	}
1546		1909
1547	cf::player->attach (	1910	cf::player->attach (
1548	on_logout => sub {	1911	on_logout => sub {
…		…
1560		1923
1561	# try to abort aborted map switching on player login :)	1924	# try to abort aborted map switching on player login :)
1562	# should happen only on crashes	1925	# should happen only on crashes
1563	if ($pl->ob->{_link_pos}) {	1926	if ($pl->ob->{_link_pos}) {
1564	$pl->ob->enter_link;	1927	$pl->ob->enter_link;
1565	cf::async {	1928	(async {
		1929	$pl->ob->reply (undef,
		1930	"There was an internal problem at your last logout, "
		1931	. "the server will try to bring you to your intended destination in a second.",
		1932	cf::NDI_RED);
1566	# we need this sleep as the login has a concurrent enter_exit running	1933	# we need this sleep as the login has a concurrent enter_exit running
1567	# and this sleep increases chances of the player not ending up in scorn	1934	# and this sleep increases chances of the player not ending up in scorn
1568	Coro::Timer::sleep 1;	1935	Coro::Timer::sleep 1;
1569	$pl->ob->leave_link;	1936	$pl->ob->leave_link;
1570	};	1937	})->prio (2);
1571	}	1938	}
1572	},	1939	},
1573	);	1940	);
1574		1941
1575	=item $player_object->goto_map ($path, $x, $y)	1942	=item $player_object->goto ($path, $x, $y)
1576		1943
1577	=cut	1944	=cut
1578		1945
1579	sub cf::object::player::goto_map {	1946	sub cf::object::player::goto {
1580	my ($self, $path, $x, $y) = @_;	1947	my ($self, $path, $x, $y) = @_;
1581		1948
1582	$self->enter_link;	1949	$self->enter_link;
1583		1950
1584	(cf::async {	1951	(async {
1585	$path = new cf::path $path;	1952	my $map = eval {
1586
1587	my $map = cf::map::find $path->as_string;	1953	my $map = cf::map::find $path;
1588	$map = $map->customise_for ($self) if $map;	1954	$map = $map->customise_for ($self) if $map;
1589		1955	$map
1590	# warn "entering ", $map->path, " at ($x, $y)\n"	1956	} or
1591	# if $map;
1592
1593	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	1957	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1594		1958
1595	$self->leave_link ($map, $x, $y);	1959	$self->leave_link ($map, $x, $y);
1596	})->prio (1);	1960	})->prio (1);
1597	}	1961	}
1598		1962
…		…
1602		1966
1603	sub parse_random_map_params {	1967	sub parse_random_map_params {
1604	my ($spec) = @_;	1968	my ($spec) = @_;
1605		1969
1606	my $rmp = { # defaults	1970	my $rmp = { # defaults
1607	xsize => 10,	1971	xsize => (cf::rndm 15, 40),
1608	ysize => 10,	1972	ysize => (cf::rndm 15, 40),
		1973	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		1974	#layout => string,
1609	};	1975	};
1610		1976
1611	for (split /\n/, $spec) {	1977	for (split /\n/, $spec) {
1612	my ($k, $v) = split /\s+/, $_, 2;	1978	my ($k, $v) = split /\s+/, $_, 2;
1613		1979
…		…
1617	$rmp	1983	$rmp
1618	}	1984	}
1619		1985
1620	sub prepare_random_map {	1986	sub prepare_random_map {
1621	my ($exit) = @_;	1987	my ($exit) = @_;
		1988
		1989	my $guard = cf::lock_acquire "exit_prepare:$exit";
1622		1990
1623	# all this does is basically replace the /! path by	1991	# all this does is basically replace the /! path by
1624	# a new random map path (?random/...) with a seed	1992	# a new random map path (?random/...) with a seed
1625	# that depends on the exit object	1993	# that depends on the exit object
1626		1994
1627	my $rmp = parse_random_map_params $exit->msg;	1995	my $rmp = parse_random_map_params $exit->msg;
1628		1996
1629	if ($exit->map) {	1997	if ($exit->map) {
1630	$rmp->{region} = $exit->map->region_name;	1998	$rmp->{region} = $exit->region->name;
1631	$rmp->{origin_map} = $exit->map->path;	1999	$rmp->{origin_map} = $exit->map->path;
1632	$rmp->{origin_x} = $exit->x;	2000	$rmp->{origin_x} = $exit->x;
1633	$rmp->{origin_y} = $exit->y;	2001	$rmp->{origin_y} = $exit->y;
1634	}	2002	}
1635		2003
1636	$rmp->{random_seed} ||= $exit->random_seed;	2004	$rmp->{random_seed} ||= $exit->random_seed;
1637		2005
1638	my $data = cf::to_json $rmp;	2006	my $data = cf::to_json $rmp;
1639	my $md5 = Digest::MD5::md5_hex $data;	2007	my $md5 = Digest::MD5::md5_hex $data;
		2008	my $meta = "$RANDOMDIR/$md5.meta";
1640		2009
1641	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2010	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1642	aio_write $fh, 0, (length $data), $data, 0;	2011	aio_write $fh, 0, (length $data), $data, 0;
		2012	undef $fh;
		2013	aio_rename "$meta~", $meta;
1643		2014
1644	$exit->slaying ("?random/$md5");	2015	$exit->slaying ("?random/$md5");
1645	$exit->msg (undef);	2016	$exit->msg (undef);
1646	}	2017	}
1647	}	2018	}
…		…
1649	sub cf::object::player::enter_exit {	2020	sub cf::object::player::enter_exit {
1650	my ($self, $exit) = @_;	2021	my ($self, $exit) = @_;
1651		2022
1652	return unless $self->type == cf::PLAYER;	2023	return unless $self->type == cf::PLAYER;
1653		2024
		2025	if ($exit->slaying eq "/!") {
		2026	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2027	# the problem is that $exit might not survive long enough
		2028	# so it needs to be done right now, right here
		2029	cf::sync_job { prepare_random_map $exit };
		2030	}
		2031
		2032	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2033	my $hp = $exit->stats->hp;
		2034	my $sp = $exit->stats->sp;
		2035
1654	$self->enter_link;	2036	$self->enter_link;
1655		2037
1656	(cf::async {	2038	(async {
1657	$self->deactivate_recursive; # just to be sure	2039	$self->deactivate_recursive; # just to be sure
1658	unless (eval {	2040	unless (eval {
1659	prepare_random_map $exit	2041	$self->goto ($slaying, $hp, $sp);
1660	if $exit->slaying eq "/!";
1661
1662	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1663	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
1664		2042
1665	1;	2043	1;
1666	}) {	2044	}) {
1667	$self->message ("Something went wrong deep within the crossfire server. "	2045	$self->message ("Something went wrong deep within the crossfire server. "
1668	. "I'll try to bring you back to the map you were before. "	2046	. "I'll try to bring you back to the map you were before. "
1669	. "Please report this to the dungeon master",	2047	. "Please report this to the dungeon master!",
1670	cf::NDI_UNIQUE | cf::NDI_RED);	2048	cf::NDI_UNIQUE | cf::NDI_RED);
1671		2049
1672	warn "ERROR in enter_exit: $@";	2050	warn "ERROR in enter_exit: $@";
1673	$self->leave_link;	2051	$self->leave_link;
1674	}	2052	}
1675	})->prio (1);	2053	})->prio (1);
…		…
1688		2066
1689	sub cf::client::send_drawinfo {	2067	sub cf::client::send_drawinfo {
1690	my ($self, $text, $flags) = @_;	2068	my ($self, $text, $flags) = @_;
1691		2069
1692	utf8::encode $text;	2070	utf8::encode $text;
1693	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2071	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1694	}	2072	}
1695		2073
		2074	=item $client->ext_event ($type, %msg)
		2075
		2076	Sends an exti event to the client.
		2077
		2078	=cut
		2079
		2080	sub cf::client::ext_event($$%) {
		2081	my ($self, $type, %msg) = @_;
		2082
		2083	$msg{msgtype} = "event_$type";
		2084	$self->send_packet ("ext " . cf::to_json \%msg);
		2085	}
1696		2086
1697	=item $success = $client->query ($flags, "text", \&cb)	2087	=item $success = $client->query ($flags, "text", \&cb)
1698		2088
1699	Queues a query to the client, calling the given callback with	2089	Queues a query to the client, calling the given callback with
1700	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2090	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
…		…
1729	# get handled first	2119	# get handled first
1730	my $queue = delete $ns->{query_queue}	2120	my $queue = delete $ns->{query_queue}
1731	or return; # be conservative, not sure how that can happen, but we saw a crash here	2121	or return; # be conservative, not sure how that can happen, but we saw a crash here
1732		2122
1733	(shift @$queue)->[1]->($msg);	2123	(shift @$queue)->[1]->($msg);
		2124	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1734		2125
1735	push @{ $ns->{query_queue} }, @$queue;	2126	push @{ $ns->{query_queue} }, @$queue;
1736		2127
1737	if (@{ $ns->{query_queue} } == @$queue) {	2128	if (@{ $ns->{query_queue} } == @$queue) {
1738	if (@$queue) {	2129	if (@$queue) {
…		…
1742	}	2133	}
1743	}	2134	}
1744	},	2135	},
1745	);	2136	);
1746		2137
1747	=item $client->coro (\&cb)	2138	=item $client->async (\&cb)
1748		2139
1749	Create a new coroutine, running the specified callback. The coroutine will	2140	Create a new coroutine, running the specified callback. The coroutine will
1750	be automatically cancelled when the client gets destroyed (e.g. on logout,	2141	be automatically cancelled when the client gets destroyed (e.g. on logout,
1751	or loss of connection).	2142	or loss of connection).
1752		2143
1753	=cut	2144	=cut
1754		2145
1755	sub cf::client::coro {	2146	sub cf::client::async {
1756	my ($self, $cb) = @_;	2147	my ($self, $cb) = @_;
1757		2148
1758	my $coro = &cf::async ($cb);	2149	my $coro = &Coro::async ($cb);
1759		2150
1760	$coro->on_destroy (sub {	2151	$coro->on_destroy (sub {
1761	delete $self->{_coro}{$coro+0};	2152	delete $self->{_coro}{$coro+0};
1762	});	2153	});
1763		2154
…		…
1796		2187
1797	# here we export the classes and methods available to script code	2188	# here we export the classes and methods available to script code
1798		2189
1799	=pod	2190	=pod
1800		2191
1801	The following fucntions and emthods are available within a safe environment:	2192	The following functions and methods are available within a safe environment:
1802		2193
1803	cf::object contr pay_amount pay_player map	2194	cf::object contr pay_amount pay_player map
1804	cf::object::player player	2195	cf::object::player player
1805	cf::player peaceful	2196	cf::player peaceful
1806	cf::map trigger	2197	cf::map trigger
…		…
1891	#############################################################################	2282	#############################################################################
1892		2283
1893	=head2 EXTENSION DATABASE SUPPORT	2284	=head2 EXTENSION DATABASE SUPPORT
1894		2285
1895	Crossfire maintains a very simple database for extension use. It can	2286	Crossfire maintains a very simple database for extension use. It can
1896	currently store anything that can be serialised using Storable, which	2287	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
1897	excludes objects.	2288	convert to/from binary).
1898		2289
1899	The parameter C<$family> should best start with the name of the extension	2290	The parameter C<$family> should best start with the name of the extension
1900	using it, it should be unique.	2291	using it, it should be unique.
1901		2292
1902	=over 4	2293	=over 4
1903		2294
1904	=item $hashref = cf::db_get $family
1905
1906	Return a hashref for use by the extension C<$family>, which can be
1907	modified. After modifications, you have to call C<cf::db_dirty> or
1908	C<cf::db_sync>.
1909
1910	=item $value = cf::db_get $family => $key	2295	=item $value = cf::db_get $family => $key
1911		2296
1912	Returns a single value from the database	2297	Returns a single value from the database.
1913
1914	=item cf::db_put $family => $hashref
1915
1916	Stores the given family hashref into the database. Updates are delayed, if
1917	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1918		2298
1919	=item cf::db_put $family => $key => $value	2299	=item cf::db_put $family => $key => $value
1920		2300
1921	Stores the given C<$value> in the family hash. Updates are delayed, if you	2301	Stores the given C<$value> in the family.
1922	want the data to be synced to disk immediately, use C<cf::db_sync>.
1923
1924	=item cf::db_dirty
1925
1926	Marks the database as dirty, to be updated at a later time.
1927
1928	=item cf::db_sync
1929
1930	Immediately write the database to disk I<if it is dirty>.
1931		2302
1932	=cut	2303	=cut
1933		2304
1934	our $DB;	2305	our $DB;
1935		2306
1936	{	2307	sub db_init {
1937	my $path = cf::localdir . "/database.pst";	2308	unless ($DB) {
		2309	$DB = BDB::db_create $DB_ENV;
1938		2310
1939	sub db_load() {	2311	cf::sync_job {
1940	$DB = stat $path ? Storable::retrieve $path : { };	2312	eval {
1941	}	2313	$DB->set_flags (BDB::CHKSUM);
1942		2314
1943	my $pid;	2315	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
1944		2316	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
1945	sub db_save() {	2317	cf::cleanup "db_open(db): $!" if $!;
1946	waitpid $pid, 0 if $pid;	2318	};
1947	if (0 == ($pid = fork)) {	2319	cf::cleanup "db_open(db): $@" if $@;
1948	$DB->{_meta}{version} = 1;
1949	Storable::nstore $DB, "$path~";
1950	rename "$path~", $path;
1951	cf::_exit 0 if defined $pid;
1952	}	2320	};
1953	}
1954
1955	my $dirty;
1956
1957	sub db_sync() {
1958	db_save if $dirty;
1959	undef $dirty;
1960	}
1961
1962	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1963	db_sync;
1964	});	2321	}
		2322	}
1965		2323
1966	sub db_dirty() {
1967	$dirty = 1;
1968	$idle->start;
1969	}
1970
1971	sub db_get($;$) {	2324	sub db_get($$) {
1972	@_ >= 2	2325	my $key = "$_[0]/$_[1]";
1973	? $DB->{$_[0]}{$_[1]}
1974	: ($DB->{$_[0]} ||= { })
1975	}
1976		2326
		2327	cf::sync_job {
		2328	BDB::db_get $DB, undef, $key, my $data;
		2329
		2330	$! ? ()
		2331	: $data
		2332	}
		2333	}
		2334
1977	sub db_put($$;$) {	2335	sub db_put($$$) {
1978	if (@_ >= 3) {	2336	BDB::dbreq_pri 4;
1979	$DB->{$_[0]}{$_[1]} = $_[2];	2337	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
1980	} else {	2338	}
1981	$DB->{$_[0]} = $_[1];
1982	}
1983	db_dirty;
1984	}
1985		2339
1986	cf::global->attach (	2340	=item cf::cache $id => [$paths...], $processversion => $process
1987	prio => 10000,	2341
1988	on_cleanup => sub {	2342	Generic caching function that returns the value of the resource $id,
1989	db_sync;	2343	caching and regenerating as required.
		2344
		2345	This function can block.
		2346
		2347	=cut
		2348
		2349	sub cache {
		2350	my ($id, $src, $processversion, $process) = @_;
		2351
		2352	my $meta =
		2353	join "\x00",
		2354	$processversion,
		2355	map {
		2356	aio_stat $_
		2357	and Carp::croak "$_: $!";
		2358
		2359	($_, (stat _)[7,9])
		2360	} @$src;
		2361
		2362	my $dbmeta = db_get cache => "$id/meta";
		2363	if ($dbmeta ne $meta) {
		2364	# changed, we may need to process
		2365
		2366	my @data;
		2367	my $md5;
		2368
		2369	for (0 .. $#$src) {
		2370	0 <= aio_load $src->[$_], $data[$_]
		2371	or Carp::croak "$src->[$_]: $!";
1990	},	2372	}
1991	);	2373
		2374	# if processing is expensive, check
		2375	# checksum first
		2376	if (1) {
		2377	$md5 =
		2378	join "\x00",
		2379	$processversion,
		2380	map {
		2381	Coro::cede;
		2382	($src->[$_], Digest::MD5::md5_hex $data[$_])
		2383	} 0.. $#$src;
		2384
		2385
		2386	my $dbmd5 = db_get cache => "$id/md5";
		2387	if ($dbmd5 eq $md5) {
		2388	db_put cache => "$id/meta", $meta;
		2389
		2390	return db_get cache => "$id/data";
		2391	}
		2392	}
		2393
		2394	my $t1 = Time::HiRes::time;
		2395	my $data = $process->(\@data);
		2396	my $t2 = Time::HiRes::time;
		2397
		2398	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		2399
		2400	db_put cache => "$id/data", $data;
		2401	db_put cache => "$id/md5" , $md5;
		2402	db_put cache => "$id/meta", $meta;
		2403
		2404	return $data;
		2405	}
		2406
		2407	db_get cache => "$id/data"
1992	}	2408	}
		2409
		2410	=item fork_call { }, $args
		2411
		2412	Executes the given code block with the given arguments in a seperate
		2413	process, returning the results. Everything must be serialisable with
		2414	Coro::Storable. May, of course, block. Note that the executed sub may
		2415	never block itself or use any form of Event handling.
		2416
		2417	=cut
		2418
		2419	sub fork_call(&@) {
		2420	my ($cb, @args) = @_;
		2421
		2422	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		2423	# or die "socketpair: $!";
		2424	pipe my $fh1, my $fh2
		2425	or die "pipe: $!";
		2426
		2427	if (my $pid = fork) {
		2428	close $fh2;
		2429
		2430	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
		2431	$res = Coro::Storable::thaw $res;
		2432
		2433	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		2434
		2435	die $$res unless "ARRAY" eq ref $res;
		2436
		2437	return wantarray ? @$res : $res->[-1];
		2438	} else {
		2439	local $SIG{__WARN__};
		2440	eval {
		2441	local $SIG{__DIE__};
		2442	close $fh1;
		2443
		2444	my @res = eval { $cb->(@args) };
		2445	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
		2446	};
		2447
		2448	warn $@ if $@;
		2449	_exit 0;
		2450	}
		2451	}
		2452
		2453
1993		2454
1994	#############################################################################	2455	#############################################################################
1995	# the server's main()	2456	# the server's init and main functions
		2457
		2458	sub load_facedata($) {
		2459	my ($path) = @_;
		2460
		2461	warn "loading facedata from $path\n";
		2462
		2463	my $facedata;
		2464	0 < aio_load $path, $facedata
		2465	or die "$path: $!";
		2466
		2467	$facedata = Coro::Storable::thaw $facedata;
		2468
		2469	$facedata->{version} == 2
		2470	or cf::cleanup "$path: version mismatch, cannot proceed.";
		2471
		2472	{
		2473	my $faces = $facedata->{faceinfo};
		2474
		2475	while (my ($face, $info) = each %$faces) {
		2476	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		2477	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
		2478	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2479	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
		2480	Coro::cede;
		2481	}
		2482
		2483	while (my ($face, $info) = each %$faces) {
		2484	next unless $info->{smooth};
		2485	my $idx = cf::face::find $face
		2486	or next;
		2487	if (my $smooth = cf::face::find $info->{smooth}) {
		2488	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2489	} else {
		2490	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2491	}
		2492	Coro::cede;
		2493	}
		2494	}
		2495
		2496	{
		2497	my $anims = $facedata->{animinfo};
		2498
		2499	while (my ($anim, $info) = each %$anims) {
		2500	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2501	Coro::cede;
		2502	}
		2503
		2504	cf::anim::invalidate_all; # d'oh
		2505	}
		2506
		2507	1
		2508	}
		2509
		2510	sub reload_regions {
		2511	load_resource_file "$MAPDIR/regions"
		2512	or die "unable to load regions file\n";
		2513	}
		2514
		2515	sub reload_facedata {
		2516	load_facedata "$DATADIR/facedata"
		2517	or die "unable to load facedata\n";
		2518	}
		2519
		2520	sub reload_archetypes {
		2521	load_resource_file "$DATADIR/archetypes"
		2522	or die "unable to load archetypes\n";
		2523	}
		2524
		2525	sub reload_treasures {
		2526	load_resource_file "$DATADIR/treasures"
		2527	or die "unable to load treasurelists\n";
		2528	}
		2529
		2530	sub reload_resources {
		2531	warn "reloading resource files...\n";
		2532
		2533	reload_regions;
		2534	reload_facedata;
		2535	reload_archetypes;
		2536	reload_treasures;
		2537
		2538	warn "finished reloading resource files\n";
		2539	}
		2540
		2541	sub init {
		2542	reload_resources;
		2543	}
1996		2544
1997	sub cfg_load {	2545	sub cfg_load {
1998	open my $fh, "<:utf8", cf::confdir . "/config"	2546	open my $fh, "<:utf8", "$CONFDIR/config"
1999	or return;	2547	or return;
2000		2548
2001	local $/;	2549	local $/;
2002	*CFG = YAML::Syck::Load <$fh>;	2550	*CFG = YAML::Syck::Load <$fh>;
2003		2551
2004	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	2552	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2005		2553
		2554	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2555	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2556
2006	if (exists $CFG{mlockall}) {	2557	if (exists $CFG{mlockall}) {
2007	eval {	2558	eval {
2008	$CFG{mlockall} ? &mlockall : &munlockall	2559	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2009	and die "WARNING: m(un)lockall failed: $!\n";	2560	and die "WARNING: m(un)lockall failed: $!\n";
2010	};	2561	};
2011	warn $@ if $@;	2562	warn $@ if $@;
2012	}	2563	}
2013	}	2564	}
2014		2565
2015	sub main {	2566	sub main {
2016	# we must not ever block the main coroutine	2567	# we must not ever block the main coroutine
2017	local $Coro::idle = sub {	2568	local $Coro::idle = sub {
2018	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	2569	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2019	(Coro::unblock_sub {	2570	(async {
2020	Event::one_event;	2571	Event::one_event;
2021	})->();	2572	})->prio (Coro::PRIO_MAX);
2022	};	2573	};
2023		2574
2024	cfg_load;	2575	cfg_load;
2025	db_load;	2576	db_init;
2026	load_extensions;	2577	load_extensions;
		2578
		2579	$TICK_WATCHER->start;
2027	Event::loop;	2580	Event::loop;
2028	}	2581	}
2029		2582
2030	#############################################################################	2583	#############################################################################
2031	# initialisation	2584	# initialisation and cleanup
2032		2585
		2586	# install some emergency cleanup handlers
		2587	BEGIN {
		2588	for my $signal (qw(INT HUP TERM)) {
		2589	Event->signal (
		2590	reentrant => 0,
		2591	data => WF_AUTOCANCEL,
		2592	signal => $signal,
		2593	prio => 0,
		2594	cb => sub {
		2595	cf::cleanup "SIG$signal";
		2596	},
		2597	);
		2598	}
		2599	}
		2600
		2601	sub emergency_save() {
		2602	my $freeze_guard = cf::freeze_mainloop;
		2603
		2604	warn "enter emergency perl save\n";
		2605
		2606	cf::sync_job {
		2607	# use a peculiar iteration method to avoid tripping on perl
		2608	# refcount bugs in for. also avoids problems with players
		2609	# and maps saved/destroyed asynchronously.
		2610	warn "begin emergency player save\n";
		2611	for my $login (keys %cf::PLAYER) {
		2612	my $pl = $cf::PLAYER{$login} or next;
		2613	$pl->valid or next;
		2614	$pl->save;
		2615	}
		2616	warn "end emergency player save\n";
		2617
		2618	warn "begin emergency map save\n";
		2619	for my $path (keys %cf::MAP) {
		2620	my $map = $cf::MAP{$path} or next;
		2621	$map->valid or next;
		2622	$map->save;
		2623	}
		2624	warn "end emergency map save\n";
		2625
		2626	warn "begin emergency database checkpoint\n";
		2627	BDB::db_env_txn_checkpoint $DB_ENV;
		2628	warn "end emergency database checkpoint\n";
		2629	};
		2630
		2631	warn "leave emergency perl save\n";
		2632	}
		2633
		2634	sub post_cleanup {
		2635	my ($make_core) = @_;
		2636
		2637	warn Carp::longmess "post_cleanup backtrace"
		2638	if $make_core;
		2639	}
		2640
2033	sub reload() {	2641	sub do_reload_perl() {
2034	# can/must only be called in main	2642	# can/must only be called in main
2035	if ($Coro::current != $Coro::main) {	2643	if ($Coro::current != $Coro::main) {
2036	warn "can only reload from main coroutine\n";	2644	warn "can only reload from main coroutine";
2037	return;	2645	return;
2038	}	2646	}
2039		2647
2040	warn "reloading...";	2648	warn "reloading...";
2041		2649
2042	my $guard = freeze_mainloop;	2650	warn "entering sync_job";
		2651
		2652	cf::sync_job {
		2653	cf::write_runtime; # external watchdog should not bark
2043	cf::emergency_save;	2654	cf::emergency_save;
		2655	cf::write_runtime; # external watchdog should not bark
2044		2656
2045	eval {	2657	warn "syncing database to disk";
		2658	BDB::db_env_txn_checkpoint $DB_ENV;
		2659
2046	# if anything goes wrong in here, we should simply crash as we already saved	2660	# if anything goes wrong in here, we should simply crash as we already saved
2047		2661
2048	# cancel all watchers	2662	warn "cancelling all WF_AUTOCANCEL watchers";
2049	for (Event::all_watchers) {	2663	for (Event::all_watchers) {
2050	$_->cancel if $_->data & WF_AUTOCANCEL;	2664	$_->cancel if $_->data & WF_AUTOCANCEL;
2051	}	2665	}
2052		2666
		2667	warn "flushing outstanding aio requests";
		2668	for (;;) {
		2669	BDB::flush;
		2670	IO::AIO::flush;
		2671	Coro::cede;
		2672	last unless IO::AIO::nreqs || BDB::nreqs;
		2673	warn "iterate...";
		2674	}
		2675
		2676	++$RELOAD;
		2677
2053	# cancel all extension coros	2678	warn "cancelling all extension coros";
2054	$_->cancel for values %EXT_CORO;	2679	$_->cancel for values %EXT_CORO;
2055	%EXT_CORO = ();	2680	%EXT_CORO = ();
2056		2681
2057	# unload all extensions	2682	warn "removing commands";
2058	for (@exts) {	2683	%COMMAND = ();
		2684
		2685	warn "removing ext commands";
		2686	%EXTCMD = ();
		2687
		2688	warn "unloading/nuking all extensions";
		2689	for my $pkg (@EXTS) {
2059	warn "unloading <$_>";	2690	warn "... unloading $pkg";
2060	unload_extension $_;	2691
		2692	if (my $cb = $pkg->can ("unload")) {
		2693	eval {
		2694	$cb->($pkg);
		2695	1
		2696	} or warn "$pkg unloaded, but with errors: $@";
2061	}	2697	}
2062		2698
		2699	warn "... nuking $pkg";
		2700	Symbol::delete_package $pkg;
		2701	}
		2702
2063	# unload all modules loaded from $LIBDIR	2703	warn "unloading all perl modules loaded from $LIBDIR";
2064	while (my ($k, $v) = each %INC) {	2704	while (my ($k, $v) = each %INC) {
2065	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2705	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2066		2706
2067	warn "removing <$k>";	2707	warn "... unloading $k";
2068	delete $INC{$k};	2708	delete $INC{$k};
2069		2709
2070	$k =~ s/\.pm$//;	2710	$k =~ s/\.pm$//;
2071	$k =~ s/\//::/g;	2711	$k =~ s/\//::/g;
2072		2712
…		…
2075	}	2715	}
2076		2716
2077	Symbol::delete_package $k;	2717	Symbol::delete_package $k;
2078	}	2718	}
2079		2719
2080	# sync database to disk
2081	cf::db_sync;
2082	IO::AIO::flush;
2083
2084	# get rid of safe::, as good as possible	2720	warn "getting rid of safe::, as good as possible";
2085	Symbol::delete_package "safe::$_"	2721	Symbol::delete_package "safe::$_"
2086	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2722	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2087		2723
2088	# remove register_script_function callbacks
2089	# TODO
2090
2091	# unload cf.pm "a bit"	2724	warn "unloading cf.pm \"a bit\"";
2092	delete $INC{"cf.pm"};	2725	delete $INC{"cf.pm"};
		2726	delete $INC{"cf/pod.pm"};
2093		2727
2094	# don't, removes xs symbols, too,	2728	# don't, removes xs symbols, too,
2095	# and global variables created in xs	2729	# and global variables created in xs
2096	#Symbol::delete_package __PACKAGE__;	2730	#Symbol::delete_package __PACKAGE__;
2097		2731
2098	# reload cf.pm	2732	warn "unload completed, starting to reload now";
		2733
2099	warn "reloading cf.pm";	2734	warn "reloading cf.pm";
2100	require cf;	2735	require cf;
2101	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2736	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2102		2737
2103	# load config and database again	2738	warn "loading config and database again";
2104	cf::cfg_load;	2739	cf::cfg_load;
2105	cf::db_load;
2106		2740
2107	# load extensions
2108	warn "load extensions";	2741	warn "loading extensions";
2109	cf::load_extensions;	2742	cf::load_extensions;
2110		2743
2111	# reattach attachments to objects	2744	warn "reattaching attachments to objects/players";
2112	warn "reattach";	2745	_global_reattach; # objects, sockets
2113	_global_reattach;	2746	warn "reattaching attachments to maps";
2114	};	2747	reattach $_ for values %MAP;
		2748	warn "reattaching attachments to players";
		2749	reattach $_ for values %PLAYER;
2115		2750
2116	if ($@) {	2751	warn "leaving sync_job";
		2752
		2753	1
		2754	} or do {
2117	warn $@;	2755	warn $@;
2118	warn "error while reloading, exiting.";	2756	warn "error while reloading, exiting.";
2119	exit 1;	2757	exit 1;
2120	}	2758	};
2121		2759
2122	warn "reloaded successfully";	2760	warn "reloaded";
2123	};	2761	};
2124		2762
2125	#############################################################################	2763	our $RELOAD_WATCHER; # used only during reload
2126		2764
2127	unless ($LINK_MAP) {	2765	sub reload_perl() {
2128	$LINK_MAP = cf::map::new;	2766	# doing reload synchronously and two reloads happen back-to-back,
		2767	# coro crashes during coro_state_free->destroy here.
2129		2768
2130	$LINK_MAP->width (41);	2769	$RELOAD_WATCHER ||= Event->timer (
2131	$LINK_MAP->height (41);	2770	reentrant => 0,
2132	$LINK_MAP->alloc;
2133	$LINK_MAP->path ("{link}");
2134	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2135	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2136
2137	# dirty hack because... archetypes are not yet loaded
2138	Event->timer (
2139	after => 2,	2771	after => 0,
		2772	data => WF_AUTOCANCEL,
2140	cb => sub {	2773	cb => sub {
2141	$_[0]->w->cancel;	2774	do_reload_perl;
2142		2775	undef $RELOAD_WATCHER;
2143	# provide some exits "home"
2144	my $exit = cf::object::new "exit";
2145
2146	$exit->slaying ($EMERGENCY_POSITION->[0]);
2147	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2148	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2149
2150	$LINK_MAP->insert ($exit->clone, 19, 19);
2151	$LINK_MAP->insert ($exit->clone, 19, 20);
2152	$LINK_MAP->insert ($exit->clone, 19, 21);
2153	$LINK_MAP->insert ($exit->clone, 20, 19);
2154	$LINK_MAP->insert ($exit->clone, 20, 21);
2155	$LINK_MAP->insert ($exit->clone, 21, 19);
2156	$LINK_MAP->insert ($exit->clone, 21, 20);
2157	$LINK_MAP->insert ($exit->clone, 21, 21);
2158
2159	$exit->destroy;
2160	});	2776	},
2161		2777	);
2162	$LINK_MAP->{deny_save} = 1;
2163	$LINK_MAP->{deny_reset} = 1;
2164
2165	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2166	}	2778	}
2167
2168	register "<global>", __PACKAGE__;
2169		2779
2170	register_command "reload" => sub {	2780	register_command "reload" => sub {
2171	my ($who, $arg) = @_;	2781	my ($who, $arg) = @_;
2172		2782
2173	if ($who->flag (FLAG_WIZ)) {	2783	if ($who->flag (FLAG_WIZ)) {
2174	$who->message ("start of reload.");
2175	reload;
2176	$who->message ("end of reload.");	2784	$who->message ("reloading server.");
		2785	async { reload_perl };
2177	}	2786	}
2178	};	2787	};
2179		2788
2180	unshift @INC, $LIBDIR;	2789	unshift @INC, $LIBDIR;
		2790
		2791	my $bug_warning = 0;
		2792
		2793	our @WAIT_FOR_TICK;
		2794	our @WAIT_FOR_TICK_BEGIN;
		2795
		2796	sub wait_for_tick {
		2797	return unless $TICK_WATCHER->is_active;
		2798	return if $Coro::current == $Coro::main;
		2799
		2800	my $signal = new Coro::Signal;
		2801	push @WAIT_FOR_TICK, $signal;
		2802	$signal->wait;
		2803	}
		2804
		2805	sub wait_for_tick_begin {
		2806	return unless $TICK_WATCHER->is_active;
		2807	return if $Coro::current == $Coro::main;
		2808
		2809	my $signal = new Coro::Signal;
		2810	push @WAIT_FOR_TICK_BEGIN, $signal;
		2811	$signal->wait;
		2812	}
2181		2813
2182	$TICK_WATCHER = Event->timer (	2814	$TICK_WATCHER = Event->timer (
2183	reentrant => 0,	2815	reentrant => 0,
		2816	parked => 1,
2184	prio => 0,	2817	prio => 0,
2185	at => $NEXT_TICK || $TICK,	2818	at => $NEXT_TICK || $TICK,
2186	data => WF_AUTOCANCEL,	2819	data => WF_AUTOCANCEL,
2187	cb => sub {	2820	cb => sub {
		2821	if ($Coro::current != $Coro::main) {
		2822	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2823	unless ++$bug_warning > 10;
		2824	return;
		2825	}
		2826
		2827	$NOW = Event::time;
		2828
2188	cf::server_tick; # one server iteration	2829	cf::server_tick; # one server iteration
		2830
2189	$RUNTIME += $TICK;	2831	$RUNTIME += $TICK;
2190	$NEXT_TICK += $TICK;	2832	$NEXT_TICK += $TICK;
2191		2833
		2834	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		2835	$NEXT_RUNTIME_WRITE = $NOW + 10;
		2836	Coro::async_pool {
		2837	write_runtime
		2838	or warn "ERROR: unable to write runtime file: $!";
		2839	};
		2840	}
		2841
		2842	# my $AFTER = Event::time;
		2843	# warn $AFTER - $NOW;#d#
		2844
2192	# if we are delayed by four ticks or more, skip them all	2845	# if we are delayed by four ticks or more, skip them all
2193	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2846	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2194		2847
2195	$TICK_WATCHER->at ($NEXT_TICK);	2848	$TICK_WATCHER->at ($NEXT_TICK);
2196	$TICK_WATCHER->start;	2849	$TICK_WATCHER->start;
		2850
		2851	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		2852	$sig->send;
		2853	}
		2854	while (my $sig = shift @WAIT_FOR_TICK) {
		2855	$sig->send;
		2856	}
		2857
		2858	_post_tick;
2197	},	2859	},
2198	);	2860	);
2199		2861
		2862	{
2200	IO::AIO::max_poll_time $TICK * 0.2;	2863	BDB::max_poll_time $TICK * 0.1;
2201		2864	$BDB_POLL_WATCHER = Event->io (
2202	Event->io (	2865	reentrant => 0,
2203	fd => IO::AIO::poll_fileno,	2866	fd => BDB::poll_fileno,
2204	poll => 'r',	2867	poll => 'r',
2205	prio => 5,	2868	prio => 0,
2206	data => WF_AUTOCANCEL,
2207	cb => \&IO::AIO::poll_cb,
2208	);
2209
2210	Event->timer (
2211	data => WF_AUTOCANCEL,	2869	data => WF_AUTOCANCEL,
2212	after => 0,	2870	cb => \&BDB::poll_cb,
2213	interval => 10,	2871	);
2214	cb => sub {	2872	BDB::min_parallel 8;
2215	(Coro::unblock_sub {	2873
2216	write_runtime	2874	BDB::set_sync_prepare {
2217	or warn "ERROR: unable to write runtime file: $!";	2875	my $status;
		2876	my $current = $Coro::current;
		2877	(
		2878	sub {
		2879	$status = $!;
		2880	$current->ready; undef $current;
		2881	},
		2882	sub {
		2883	Coro::schedule while defined $current;
		2884	$! = $status;
		2885	},
		2886	)
		2887	};
		2888
		2889	unless ($DB_ENV) {
		2890	$DB_ENV = BDB::db_env_create;
		2891
		2892	cf::sync_job {
		2893	eval {
		2894	BDB::db_env_open
		2895	$DB_ENV,
		2896	$BDBDIR,
		2897	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		2898	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		2899	0666;
		2900
		2901	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		2902
		2903	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		2904	$DB_ENV->set_lk_detect;
		2905	};
		2906
		2907	cf::cleanup "db_env_open(db): $@" if $@;
2218	})->();	2908	};
2219	},	2909	}
2220	);	2910	}
		2911
		2912	{
		2913	IO::AIO::min_parallel 8;
		2914
		2915	undef $Coro::AIO::WATCHER;
		2916	IO::AIO::max_poll_time $TICK * 0.1;
		2917	$AIO_POLL_WATCHER = Event->io (
		2918	reentrant => 0,
		2919	data => WF_AUTOCANCEL,
		2920	fd => IO::AIO::poll_fileno,
		2921	poll => 'r',
		2922	prio => 6,
		2923	cb => \&IO::AIO::poll_cb,
		2924	);
		2925	}
		2926
		2927	# load additional modules
		2928	use cf::pod;
2221		2929
2222	END { cf::emergency_save }	2930	END { cf::emergency_save }
2223		2931
2224	1	2932	1
2225		2933

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