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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 1.257 by root, Sat Apr 21 17:34:24 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-\x08\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};
		1495
		1496	{
1257	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1497	my $guard = cf::lock_acquire "map_load:$path";
1258		1498
1259	return if $self->in_memory != cf::MAP_SWAPPED;	1499	return if $self->in_memory != cf::MAP_SWAPPED;
1260		1500
1261	$self->in_memory (cf::MAP_LOADING);	1501	$self->in_memory (cf::MAP_LOADING);
1262		1502
1263	$self->alloc;	1503	$self->alloc;
		1504
		1505	$self->pre_load;
		1506	Coro::cede;
		1507
1264	$self->load_objects ($self->{load_path}, 1)	1508	$self->_load_objects ($self->{load_path}, 1)
1265	or return;	1509	or return;
1266		1510
1267	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1511	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1268	if delete $self->{load_original};	1512	if delete $self->{load_original};
1269		1513
1270	if (my $uniq = $path->uniq_path) {	1514	if (my $uniq = $self->uniq_path) {
1271	utf8::encode $uniq;	1515	utf8::encode $uniq;
1272	if (aio_open $uniq, O_RDONLY, 0) {	1516	if (aio_open $uniq, O_RDONLY, 0) {
1273	$self->clear_unique_items;	1517	$self->clear_unique_items;
1274	$self->load_objects ($uniq, 0);	1518	$self->_load_objects ($uniq, 0);
1275	}	1519	}
1276	}	1520	}
1277		1521
		1522	Coro::cede;
1278	# now do the right thing for maps	1523	# now do the right thing for maps
1279	$self->link_multipart_objects;	1524	$self->link_multipart_objects;
1280
1281	if ($self->{path}->is_style_map) {
1282	$self->{deny_save} = 1;
1283	$self->{deny_reset} = 1;
1284	} else {
1285	$self->fix_auto_apply;
1286	$self->decay_objects;
1287	$self->update_buttons;
1288	$self->set_darkness_map;
1289	$self->difficulty ($self->estimate_difficulty)	1525	$self->difficulty ($self->estimate_difficulty)
1290	unless $self->difficulty;	1526	unless $self->difficulty;
		1527	Coro::cede;
		1528
		1529	unless ($self->{deny_activate}) {
		1530	$self->decay_objects;
		1531	$self->fix_auto_apply;
		1532	$self->update_buttons;
		1533	Coro::cede;
		1534	$self->set_darkness_map;
		1535	Coro::cede;
1291	$self->activate;	1536	$self->activate;
1292	}	1537	}
1293		1538
1294	$self->in_memory (cf::MAP_IN_MEMORY);	1539	$self->in_memory (cf::MAP_IN_MEMORY);
		1540	}
		1541
		1542	$self->post_load;
		1543	}
		1544
		1545	sub customise_for {
		1546	my ($self, $ob) = @_;
		1547
		1548	return find "~" . $ob->name . "/" . $self->{path}
		1549	if $self->per_player;
		1550
		1551	$self
		1552	}
		1553
		1554	# find and load all maps in the 3x3 area around a map
		1555	sub load_diag {
		1556	my ($map) = @_;
		1557
		1558	my @diag; # diagonal neighbours
		1559
		1560	for (0 .. 3) {
		1561	my $neigh = $map->tile_path ($_)
		1562	or next;
		1563	$neigh = find $neigh, $map
		1564	or next;
		1565	$neigh->load;
		1566
		1567	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1568	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1569	}
		1570
		1571	for (@diag) {
		1572	my $neigh = find @$_
		1573	or next;
		1574	$neigh->load;
		1575	}
1295	}	1576	}
1296		1577
1297	sub find_sync {	1578	sub find_sync {
1298	my ($path, $origin) = @_;	1579	my ($path, $origin) = @_;
1299		1580
1300	cf::sync_job { cf::map::find $path, $origin }	1581	cf::sync_job { find $path, $origin }
1301	}	1582	}
1302		1583
1303	sub do_load_sync {	1584	sub do_load_sync {
1304	my ($map) = @_;	1585	my ($map) = @_;
1305		1586
1306	cf::sync_job { $map->load };	1587	cf::sync_job { $map->load };
1307	}	1588	}
1308		1589
		1590	our %MAP_PREFETCH;
		1591	our $MAP_PREFETCHER = undef;
		1592
		1593	sub find_async {
		1594	my ($path, $origin) = @_;
		1595
		1596	$path = normalise $path, $origin && $origin->{path};
		1597
		1598	if (my $map = $cf::MAP{$path}) {
		1599	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1600	}
		1601
		1602	undef $MAP_PREFETCH{$path};
		1603	$MAP_PREFETCHER ||= cf::async {
		1604	while (%MAP_PREFETCH) {
		1605	for my $path (keys %MAP_PREFETCH) {
		1606	my $map = find $path
		1607	or next;
		1608	$map->load;
		1609
		1610	delete $MAP_PREFETCH{$path};
		1611	}
		1612	}
		1613	undef $MAP_PREFETCHER;
		1614	};
		1615	$MAP_PREFETCHER->prio (6);
		1616
		1617	()
		1618	}
		1619
1309	sub save {	1620	sub save {
1310	my ($self) = @_;	1621	my ($self) = @_;
1311		1622
		1623	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1624
1312	$self->{last_save} = $cf::RUNTIME;	1625	$self->{last_save} = $cf::RUNTIME;
1313		1626
1314	return unless $self->dirty;	1627	return unless $self->dirty;
1315		1628
1316	my $save = $self->{path}->save_path; utf8::encode $save;	1629	my $save = $self->save_path; utf8::encode $save;
1317	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	1630	my $uniq = $self->uniq_path; utf8::encode $uniq;
1318		1631
1319	$self->{load_path} = $save;	1632	$self->{load_path} = $save;
1320		1633
1321	return if $self->{deny_save};	1634	return if $self->{deny_save};
1322		1635
1323	local $self->{last_access} = $self->last_access;#d#	1636	local $self->{last_access} = $self->last_access;#d#
1324		1637
		1638	cf::async {
		1639	$_->contr->save for $self->players;
		1640	};
		1641
1325	if ($uniq) {	1642	if ($uniq) {
1326	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1643	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1327	$self->save_objects ($uniq, cf::IO_UNIQUES);	1644	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1328	} else {	1645	} else {
1329	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1646	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1330	}	1647	}
1331	}	1648	}
1332		1649
1333	sub swap_out {	1650	sub swap_out {
1334	my ($self) = @_;	1651	my ($self) = @_;
1335		1652
1336	# save first because save cedes	1653	# save first because save cedes
1337	$self->save;	1654	$self->save;
		1655
		1656	my $lock = cf::lock_acquire "map_data:" . $self->path;
1338		1657
1339	return if $self->players;	1658	return if $self->players;
1340	return if $self->in_memory != cf::MAP_IN_MEMORY;	1659	return if $self->in_memory != cf::MAP_IN_MEMORY;
1341	return if $self->{deny_save};	1660	return if $self->{deny_save};
1342		1661
…		…
1346		1665
1347	sub reset_at {	1666	sub reset_at {
1348	my ($self) = @_;	1667	my ($self) = @_;
1349		1668
1350	# TODO: safety, remove and allow resettable per-player maps	1669	# TODO: safety, remove and allow resettable per-player maps
1351	return 1e99 if $self->{path}{user_rel};	1670	return 1e99 if $self->isa ("ext::map_per_player");#d#
1352	return 1e99 if $self->{deny_reset};	1671	return 1e99 if $self->{deny_reset};
1353		1672
1354	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1673	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1355	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1674	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1356		1675
…		…
1361	my ($self) = @_;	1680	my ($self) = @_;
1362		1681
1363	$self->reset_at <= $cf::RUNTIME	1682	$self->reset_at <= $cf::RUNTIME
1364	}	1683	}
1365		1684
1366	sub unlink_save {
1367	my ($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	$self->save;
1385	}
1386
1387	sub reset {	1685	sub reset {
1388	my ($self) = @_;	1686	my ($self) = @_;
1389		1687
		1688	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1689
1390	return if $self->players;	1690	return if $self->players;
1391	return if $self->{path}{user_rel};#d#	1691	return if $self->isa ("ext::map_per_player");#d#
1392		1692
1393	warn "resetting map ", $self->path;#d#	1693	warn "resetting map ", $self->path;#d#
1394		1694
		1695	$self->in_memory (cf::MAP_SWAPPED);
		1696
		1697	# need to save uniques path
		1698	unless ($self->{deny_save}) {
		1699	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1700
		1701	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		1702	if $uniq;
		1703	}
		1704
1395	delete $cf::MAP{$self->path};	1705	delete $cf::MAP{$self->path};
		1706
		1707	$self->clear;
1396		1708
1397	$_->clear_links_to ($self) for values %cf::MAP;	1709	$_->clear_links_to ($self) for values %cf::MAP;
1398		1710
1399	$self->unlink_save;	1711	$self->unlink_save;
1400	$self->destroy;	1712	$self->destroy;
…		…
1403	my $nuke_counter = "aaaa";	1715	my $nuke_counter = "aaaa";
1404		1716
1405	sub nuke {	1717	sub nuke {
1406	my ($self) = @_;	1718	my ($self) = @_;
1407		1719
		1720	delete $cf::MAP{$self->path};
		1721
		1722	$self->unlink_save;
		1723
		1724	bless $self, "cf::map";
		1725	delete $self->{deny_reset};
1408	$self->{deny_save} = 1;	1726	$self->{deny_save} = 1;
1409	$self->reset_timeout (1);	1727	$self->reset_timeout (1);
1410	$self->rename ("{nuke}/" . ($nuke_counter++));	1728	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1729
		1730	$cf::MAP{$self->path} = $self;
		1731
1411	$self->reset; # polite request, might not happen	1732	$self->reset; # polite request, might not happen
1412	}	1733	}
1413		1734
1414	sub customise_for {	1735	=item cf::map::unique_maps
1415	my ($map, $ob) = @_;
1416		1736
1417	if ($map->per_player) {	1737	Returns an arrayref of paths of all shared maps that have
1418	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	1738	instantiated unique items. May block.
1419	}
1420		1739
1421	$map	1740	=cut
1422	}
1423		1741
1424	sub emergency_save {	1742	sub unique_maps() {
1425	my $freeze_guard = cf::freeze_mainloop;	1743	my $files = aio_readdir $UNIQUEDIR
		1744	or return;
1426		1745
1427	warn "enter emergency map save\n";	1746	my @paths;
1428		1747
1429	cf::sync_job {	1748	for (@$files) {
1430	warn "begin emergency map save\n";	1749	utf8::decode $_;
1431	$_->save for values %cf::MAP;	1750	next if /\.pst$/;
		1751	next unless /^$PATH_SEP/o;
		1752
		1753	push @paths, cf::map::normalise $_;
1432	};	1754	}
1433		1755
1434	warn "end emergency map save\n";	1756	\@paths
1435	}	1757	}
1436		1758
1437	package cf;	1759	package cf;
1438		1760
1439	=back	1761	=back
1440		1762
		1763	=head3 cf::object
		1764
		1765	=cut
		1766
		1767	package cf::object;
		1768
		1769	=over 4
		1770
		1771	=item $ob->inv_recursive
		1772
		1773	Returns the inventory of the object _and_ their inventories, recursively.
		1774
		1775	=cut
		1776
		1777	sub inv_recursive_;
		1778	sub inv_recursive_ {
		1779	map { $_, inv_recursive_ $_->inv } @_
		1780	}
		1781
		1782	sub inv_recursive {
		1783	inv_recursive_ inv $_[0]
		1784	}
		1785
		1786	package cf;
		1787
		1788	=back
1441		1789
1442	=head3 cf::object::player	1790	=head3 cf::object::player
1443		1791
1444	=over 4	1792	=over 4
1445		1793
…		…
1485		1833
1486	=item $player_object->enter_link	1834	=item $player_object->enter_link
1487		1835
1488	Freezes the player and moves him/her to a special map (C<{link}>).	1836	Freezes the player and moves him/her to a special map (C<{link}>).
1489		1837
1490	The player should be reaosnably safe there for short amounts of time. You	1838	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.	1839	I<MUST> call C<leave_link> as soon as possible, though.
1492		1840
		1841	Will never block.
		1842
1493	=item $player_object->leave_link ($map, $x, $y)	1843	=item $player_object->leave_link ($map, $x, $y)
1494		1844
1495	Moves the player out of the specila link map onto the given map. If the	1845	Moves the player out of the special C<{link}> map onto the specified
1496	map is not valid (or omitted), the player will be moved back to the	1846	map. If the map is not valid (or omitted), the player will be moved back
1497	location he/she was before the call to C<enter_link>, or, if that fails,	1847	to the location he/she was before the call to C<enter_link>, or, if that
1498	to the emergency map position.	1848	fails, to the emergency map position.
1499		1849
1500	Might block.	1850	Might block.
1501		1851
1502	=cut	1852	=cut
		1853
		1854	sub link_map {
		1855	unless ($LINK_MAP) {
		1856	$LINK_MAP = cf::map::find "{link}"
		1857	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		1858	$LINK_MAP->load;
		1859	}
		1860
		1861	$LINK_MAP
		1862	}
1503		1863
1504	sub cf::object::player::enter_link {	1864	sub cf::object::player::enter_link {
1505	my ($self) = @_;	1865	my ($self) = @_;
1506		1866
1507	$self->deactivate_recursive;	1867	return if UNIVERSAL::isa $self->map, "ext::map_link";
1508
1509	return if $self->map == $LINK_MAP;
1510		1868
1511	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	1869	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1512	if $self->map;	1870	if $self->map;
1513		1871
1514	$self->enter_map ($LINK_MAP, 20, 20);	1872	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1515	}	1873	}
1516		1874
1517	sub cf::object::player::leave_link {	1875	sub cf::object::player::leave_link {
1518	my ($self, $map, $x, $y) = @_;	1876	my ($self, $map, $x, $y) = @_;
1519		1877
…		…
1537	# use -1 or undef as default coordinates, not 0, 0	1895	# use -1 or undef as default coordinates, not 0, 0
1538	($x, $y) = ($map->enter_x, $map->enter_y)	1896	($x, $y) = ($map->enter_x, $map->enter_y)
1539	if $x <=0 && $y <= 0;	1897	if $x <=0 && $y <= 0;
1540		1898
1541	$map->load;	1899	$map->load;
		1900	$map->load_diag;
1542		1901
		1902	return unless $self->contr->active;
1543	$self->activate_recursive;	1903	$self->activate_recursive;
		1904
		1905	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1544	$self->enter_map ($map, $x, $y);	1906	$self->enter_map ($map, $x, $y);
1545	}	1907	}
1546		1908
1547	cf::player->attach (	1909	cf::player->attach (
1548	on_logout => sub {	1910	on_logout => sub {
…		…
1560		1922
1561	# try to abort aborted map switching on player login :)	1923	# try to abort aborted map switching on player login :)
1562	# should happen only on crashes	1924	# should happen only on crashes
1563	if ($pl->ob->{_link_pos}) {	1925	if ($pl->ob->{_link_pos}) {
1564	$pl->ob->enter_link;	1926	$pl->ob->enter_link;
1565	cf::async {	1927	(async {
		1928	$pl->ob->reply (undef,
		1929	"There was an internal problem at your last logout, "
		1930	. "the server will try to bring you to your intended destination in a second.",
		1931	cf::NDI_RED);
1566	# we need this sleep as the login has a concurrent enter_exit running	1932	# 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	1933	# and this sleep increases chances of the player not ending up in scorn
1568	Coro::Timer::sleep 1;	1934	Coro::Timer::sleep 1;
1569	$pl->ob->leave_link;	1935	$pl->ob->leave_link;
1570	};	1936	})->prio (2);
1571	}	1937	}
1572	},	1938	},
1573	);	1939	);
1574		1940
1575	=item $player_object->goto_map ($path, $x, $y)	1941	=item $player_object->goto ($path, $x, $y)
1576		1942
1577	=cut	1943	=cut
1578		1944
1579	sub cf::object::player::goto_map {	1945	sub cf::object::player::goto {
1580	my ($self, $path, $x, $y) = @_;	1946	my ($self, $path, $x, $y) = @_;
1581		1947
1582	$self->enter_link;	1948	$self->enter_link;
1583		1949
1584	(cf::async {	1950	(async {
1585	$path = new cf::path $path;	1951	my $map = eval {
1586
1587	my $map = cf::map::find $path->as_string;	1952	my $map = cf::map::find $path;
1588	$map = $map->customise_for ($self) if $map;	1953	$map = $map->customise_for ($self) if $map;
1589		1954	$map
1590	# warn "entering ", $map->path, " at ($x, $y)\n"	1955	} or
1591	# if $map;
1592
1593	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	1956	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1594		1957
1595	$self->leave_link ($map, $x, $y);	1958	$self->leave_link ($map, $x, $y);
1596	})->prio (1);	1959	})->prio (1);
1597	}	1960	}
1598		1961
…		…
1602		1965
1603	sub parse_random_map_params {	1966	sub parse_random_map_params {
1604	my ($spec) = @_;	1967	my ($spec) = @_;
1605		1968
1606	my $rmp = { # defaults	1969	my $rmp = { # defaults
1607	xsize => 10,	1970	xsize => (cf::rndm 15, 40),
1608	ysize => 10,	1971	ysize => (cf::rndm 15, 40),
		1972	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		1973	#layout => string,
1609	};	1974	};
1610		1975
1611	for (split /\n/, $spec) {	1976	for (split /\n/, $spec) {
1612	my ($k, $v) = split /\s+/, $_, 2;	1977	my ($k, $v) = split /\s+/, $_, 2;
1613		1978
…		…
1617	$rmp	1982	$rmp
1618	}	1983	}
1619		1984
1620	sub prepare_random_map {	1985	sub prepare_random_map {
1621	my ($exit) = @_;	1986	my ($exit) = @_;
		1987
		1988	my $guard = cf::lock_acquire "exit_prepare:$exit";
1622		1989
1623	# all this does is basically replace the /! path by	1990	# all this does is basically replace the /! path by
1624	# a new random map path (?random/...) with a seed	1991	# a new random map path (?random/...) with a seed
1625	# that depends on the exit object	1992	# that depends on the exit object
1626		1993
1627	my $rmp = parse_random_map_params $exit->msg;	1994	my $rmp = parse_random_map_params $exit->msg;
1628		1995
1629	if ($exit->map) {	1996	if ($exit->map) {
1630	$rmp->{region} = $exit->map->region_name;	1997	$rmp->{region} = $exit->region->name;
1631	$rmp->{origin_map} = $exit->map->path;	1998	$rmp->{origin_map} = $exit->map->path;
1632	$rmp->{origin_x} = $exit->x;	1999	$rmp->{origin_x} = $exit->x;
1633	$rmp->{origin_y} = $exit->y;	2000	$rmp->{origin_y} = $exit->y;
1634	}	2001	}
1635		2002
1636	$rmp->{random_seed} ||= $exit->random_seed;	2003	$rmp->{random_seed} ||= $exit->random_seed;
1637		2004
1638	my $data = cf::to_json $rmp;	2005	my $data = cf::to_json $rmp;
1639	my $md5 = Digest::MD5::md5_hex $data;	2006	my $md5 = Digest::MD5::md5_hex $data;
		2007	my $meta = "$RANDOMDIR/$md5.meta";
1640		2008
1641	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2009	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1642	aio_write $fh, 0, (length $data), $data, 0;	2010	aio_write $fh, 0, (length $data), $data, 0;
		2011	undef $fh;
		2012	aio_rename "$meta~", $meta;
1643		2013
1644	$exit->slaying ("?random/$md5");	2014	$exit->slaying ("?random/$md5");
1645	$exit->msg (undef);	2015	$exit->msg (undef);
1646	}	2016	}
1647	}	2017	}
…		…
1649	sub cf::object::player::enter_exit {	2019	sub cf::object::player::enter_exit {
1650	my ($self, $exit) = @_;	2020	my ($self, $exit) = @_;
1651		2021
1652	return unless $self->type == cf::PLAYER;	2022	return unless $self->type == cf::PLAYER;
1653		2023
		2024	if ($exit->slaying eq "/!") {
		2025	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2026	# the problem is that $exit might not survive long enough
		2027	# so it needs to be done right now, right here
		2028	cf::sync_job { prepare_random_map $exit };
		2029	}
		2030
		2031	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2032	my $hp = $exit->stats->hp;
		2033	my $sp = $exit->stats->sp;
		2034
1654	$self->enter_link;	2035	$self->enter_link;
1655		2036
1656	(cf::async {	2037	(async {
1657	$self->deactivate_recursive; # just to be sure	2038	$self->deactivate_recursive; # just to be sure
1658	unless (eval {	2039	unless (eval {
1659	prepare_random_map $exit	2040	$self->goto ($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		2041
1665	1;	2042	1;
1666	}) {	2043	}) {
1667	$self->message ("Something went wrong deep within the crossfire server. "	2044	$self->message ("Something went wrong deep within the crossfire server. "
1668	. "I'll try to bring you back to the map you were before. "	2045	. "I'll try to bring you back to the map you were before. "
1669	. "Please report this to the dungeon master",	2046	. "Please report this to the dungeon master!",
1670	cf::NDI_UNIQUE | cf::NDI_RED);	2047	cf::NDI_UNIQUE | cf::NDI_RED);
1671		2048
1672	warn "ERROR in enter_exit: $@";	2049	warn "ERROR in enter_exit: $@";
1673	$self->leave_link;	2050	$self->leave_link;
1674	}	2051	}
1675	})->prio (1);	2052	})->prio (1);
…		…
1688		2065
1689	sub cf::client::send_drawinfo {	2066	sub cf::client::send_drawinfo {
1690	my ($self, $text, $flags) = @_;	2067	my ($self, $text, $flags) = @_;
1691		2068
1692	utf8::encode $text;	2069	utf8::encode $text;
1693	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2070	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1694	}	2071	}
1695		2072
		2073	=item $client->ext_event ($type, %msg)
		2074
		2075	Sends an exti event to the client.
		2076
		2077	=cut
		2078
		2079	sub cf::client::ext_event($$%) {
		2080	my ($self, $type, %msg) = @_;
		2081
		2082	$msg{msgtype} = "event_$type";
		2083	$self->send_packet ("ext " . cf::to_json \%msg);
		2084	}
1696		2085
1697	=item $success = $client->query ($flags, "text", \&cb)	2086	=item $success = $client->query ($flags, "text", \&cb)
1698		2087
1699	Queues a query to the client, calling the given callback with	2088	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>,	2089	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
…		…
1729	# get handled first	2118	# get handled first
1730	my $queue = delete $ns->{query_queue}	2119	my $queue = delete $ns->{query_queue}
1731	or return; # be conservative, not sure how that can happen, but we saw a crash here	2120	or return; # be conservative, not sure how that can happen, but we saw a crash here
1732		2121
1733	(shift @$queue)->[1]->($msg);	2122	(shift @$queue)->[1]->($msg);
		2123	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1734		2124
1735	push @{ $ns->{query_queue} }, @$queue;	2125	push @{ $ns->{query_queue} }, @$queue;
1736		2126
1737	if (@{ $ns->{query_queue} } == @$queue) {	2127	if (@{ $ns->{query_queue} } == @$queue) {
1738	if (@$queue) {	2128	if (@$queue) {
…		…
1742	}	2132	}
1743	}	2133	}
1744	},	2134	},
1745	);	2135	);
1746		2136
1747	=item $client->coro (\&cb)	2137	=item $client->async (\&cb)
1748		2138
1749	Create a new coroutine, running the specified callback. The coroutine will	2139	Create a new coroutine, running the specified callback. The coroutine will
1750	be automatically cancelled when the client gets destroyed (e.g. on logout,	2140	be automatically cancelled when the client gets destroyed (e.g. on logout,
1751	or loss of connection).	2141	or loss of connection).
1752		2142
1753	=cut	2143	=cut
1754		2144
1755	sub cf::client::coro {	2145	sub cf::client::async {
1756	my ($self, $cb) = @_;	2146	my ($self, $cb) = @_;
1757		2147
1758	my $coro = &cf::async ($cb);	2148	my $coro = &Coro::async ($cb);
1759		2149
1760	$coro->on_destroy (sub {	2150	$coro->on_destroy (sub {
1761	delete $self->{_coro}{$coro+0};	2151	delete $self->{_coro}{$coro+0};
1762	});	2152	});
1763		2153
…		…
1796		2186
1797	# here we export the classes and methods available to script code	2187	# here we export the classes and methods available to script code
1798		2188
1799	=pod	2189	=pod
1800		2190
1801	The following fucntions and emthods are available within a safe environment:	2191	The following functions and methods are available within a safe environment:
1802		2192
1803	cf::object contr pay_amount pay_player map	2193	cf::object contr pay_amount pay_player map
1804	cf::object::player player	2194	cf::object::player player
1805	cf::player peaceful	2195	cf::player peaceful
1806	cf::map trigger	2196	cf::map trigger
…		…
1891	#############################################################################	2281	#############################################################################
1892		2282
1893	=head2 EXTENSION DATABASE SUPPORT	2283	=head2 EXTENSION DATABASE SUPPORT
1894		2284
1895	Crossfire maintains a very simple database for extension use. It can	2285	Crossfire maintains a very simple database for extension use. It can
1896	currently store anything that can be serialised using Storable, which	2286	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
1897	excludes objects.	2287	convert to/from binary).
1898		2288
1899	The parameter C<$family> should best start with the name of the extension	2289	The parameter C<$family> should best start with the name of the extension
1900	using it, it should be unique.	2290	using it, it should be unique.
1901		2291
1902	=over 4	2292	=over 4
1903		2293
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	2294	=item $value = cf::db_get $family => $key
1911		2295
1912	Returns a single value from the database	2296	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		2297
1919	=item cf::db_put $family => $key => $value	2298	=item cf::db_put $family => $key => $value
1920		2299
1921	Stores the given C<$value> in the family hash. Updates are delayed, if you	2300	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		2301
1932	=cut	2302	=cut
1933		2303
1934	our $DB;	2304	our $DB;
1935		2305
1936	{	2306	sub db_init {
1937	my $path = cf::localdir . "/database.pst";	2307	unless ($DB) {
		2308	$DB = BDB::db_create $DB_ENV;
1938		2309
1939	sub db_load() {	2310	cf::sync_job {
1940	$DB = stat $path ? Storable::retrieve $path : { };	2311	eval {
1941	}	2312	$DB->set_flags (BDB::CHKSUM);
1942		2313
1943	my $pid;	2314	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
1944		2315	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
1945	sub db_save() {	2316	cf::cleanup "db_open(db): $!" if $!;
1946	waitpid $pid, 0 if $pid;	2317	};
1947	if (0 == ($pid = fork)) {	2318	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	}	2319	};
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	});	2320	}
		2321	}
1965		2322
1966	sub db_dirty() {
1967	$dirty = 1;
1968	$idle->start;
1969	}
1970
1971	sub db_get($;$) {	2323	sub db_get($$) {
1972	@_ >= 2	2324	my $key = "$_[0]/$_[1]";
1973	? $DB->{$_[0]}{$_[1]}
1974	: ($DB->{$_[0]} ||= { })
1975	}
1976		2325
		2326	cf::sync_job {
		2327	BDB::db_get $DB, undef, $key, my $data;
		2328
		2329	$! ? ()
		2330	: $data
		2331	}
		2332	}
		2333
1977	sub db_put($$;$) {	2334	sub db_put($$$) {
1978	if (@_ >= 3) {	2335	BDB::dbreq_pri 4;
1979	$DB->{$_[0]}{$_[1]} = $_[2];	2336	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
1980	} else {	2337	}
1981	$DB->{$_[0]} = $_[1];
1982	}
1983	db_dirty;
1984	}
1985		2338
1986	cf::global->attach (	2339	=item cf::cache $id => [$paths...], $processversion => $process
1987	prio => 10000,	2340
1988	on_cleanup => sub {	2341	Generic caching function that returns the value of the resource $id,
1989	db_sync;	2342	caching and regenerating as required.
		2343
		2344	This function can block.
		2345
		2346	=cut
		2347
		2348	sub cache {
		2349	my ($id, $src, $processversion, $process) = @_;
		2350
		2351	my $meta =
		2352	join "\x00",
		2353	$processversion,
		2354	map {
		2355	aio_stat $_
		2356	and Carp::croak "$_: $!";
		2357
		2358	($_, (stat _)[7,9])
		2359	} @$src;
		2360
		2361	my $dbmeta = db_get cache => "$id/meta";
		2362	if ($dbmeta ne $meta) {
		2363	# changed, we may need to process
		2364
		2365	my @data;
		2366	my $md5;
		2367
		2368	for (0 .. $#$src) {
		2369	0 <= aio_load $src->[$_], $data[$_]
		2370	or Carp::croak "$src->[$_]: $!";
1990	},	2371	}
1991	);	2372
		2373	# if processing is expensive, check
		2374	# checksum first
		2375	if (1) {
		2376	$md5 =
		2377	join "\x00",
		2378	$processversion,
		2379	map {
		2380	Coro::cede;
		2381	($src->[$_], Digest::MD5::md5_hex $data[$_])
		2382	} 0.. $#$src;
		2383
		2384
		2385	my $dbmd5 = db_get cache => "$id/md5";
		2386	if ($dbmd5 eq $md5) {
		2387	db_put cache => "$id/meta", $meta;
		2388
		2389	return db_get cache => "$id/data";
		2390	}
		2391	}
		2392
		2393	my $t1 = Time::HiRes::time;
		2394	my $data = $process->(\@data);
		2395	my $t2 = Time::HiRes::time;
		2396
		2397	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		2398
		2399	db_put cache => "$id/data", $data;
		2400	db_put cache => "$id/md5" , $md5;
		2401	db_put cache => "$id/meta", $meta;
		2402
		2403	return $data;
		2404	}
		2405
		2406	db_get cache => "$id/data"
1992	}	2407	}
		2408
		2409	=item fork_call { }, $args
		2410
		2411	Executes the given code block with the given arguments in a seperate
		2412	process, returning the results. Everything must be serialisable with
		2413	Coro::Storable. May, of course, block. Note that the executed sub may
		2414	never block itself or use any form of Event handling.
		2415
		2416	=cut
		2417
		2418	sub fork_call(&@) {
		2419	my ($cb, @args) = @_;
		2420
		2421	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		2422	# or die "socketpair: $!";
		2423	pipe my $fh1, my $fh2
		2424	or die "pipe: $!";
		2425
		2426	if (my $pid = fork) {
		2427	close $fh2;
		2428
		2429	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
		2430	$res = Coro::Storable::thaw $res;
		2431
		2432	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		2433
		2434	die $$res unless "ARRAY" eq ref $res;
		2435
		2436	return wantarray ? @$res : $res->[-1];
		2437	} else {
		2438	local $SIG{__WARN__};
		2439	eval {
		2440	local $SIG{__DIE__};
		2441	close $fh1;
		2442
		2443	my @res = eval { $cb->(@args) };
		2444	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
		2445	};
		2446
		2447	warn $@ if $@;
		2448	_exit 0;
		2449	}
		2450	}
		2451
		2452
1993		2453
1994	#############################################################################	2454	#############################################################################
1995	# the server's main()	2455	# the server's init and main functions
		2456
		2457	sub load_facedata($) {
		2458	my ($path) = @_;
		2459
		2460	warn "loading facedata from $path\n";
		2461
		2462	my $facedata;
		2463	0 < aio_load $path, $facedata
		2464	or die "$path: $!";
		2465
		2466	$facedata = Coro::Storable::thaw $facedata;
		2467
		2468	$facedata->{version} == 2
		2469	or cf::cleanup "$path: version mismatch, cannot proceed.";
		2470
		2471	{
		2472	my $faces = $facedata->{faceinfo};
		2473
		2474	while (my ($face, $info) = each %$faces) {
		2475	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		2476	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
		2477	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2478	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
		2479	Coro::cede;
		2480	}
		2481
		2482	while (my ($face, $info) = each %$faces) {
		2483	next unless $info->{smooth};
		2484	my $idx = cf::face::find $face
		2485	or next;
		2486	if (my $smooth = cf::face::find $info->{smooth}) {
		2487	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2488	} else {
		2489	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2490	}
		2491	Coro::cede;
		2492	}
		2493	}
		2494
		2495	{
		2496	my $anims = $facedata->{animinfo};
		2497
		2498	while (my ($anim, $info) = each %$anims) {
		2499	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2500	Coro::cede;
		2501	}
		2502
		2503	cf::anim::invalidate_all; # d'oh
		2504	}
		2505
		2506	1
		2507	}
		2508
		2509	sub reload_regions {
		2510	load_resource_file "$MAPDIR/regions"
		2511	or die "unable to load regions file\n";
		2512	}
		2513
		2514	sub reload_facedata {
		2515	load_facedata "$DATADIR/facedata"
		2516	or die "unable to load facedata\n";
		2517	}
		2518
		2519	sub reload_archetypes {
		2520	load_resource_file "$DATADIR/archetypes"
		2521	or die "unable to load archetypes\n";
		2522	}
		2523
		2524	sub reload_treasures {
		2525	load_resource_file "$DATADIR/treasures"
		2526	or die "unable to load treasurelists\n";
		2527	}
		2528
		2529	sub reload_resources {
		2530	warn "reloading resource files...\n";
		2531
		2532	reload_regions;
		2533	reload_facedata;
		2534	reload_archetypes;
		2535	reload_treasures;
		2536
		2537	warn "finished reloading resource files\n";
		2538	}
		2539
		2540	sub init {
		2541	reload_resources;
		2542	}
1996		2543
1997	sub cfg_load {	2544	sub cfg_load {
1998	open my $fh, "<:utf8", cf::confdir . "/config"	2545	open my $fh, "<:utf8", "$CONFDIR/config"
1999	or return;	2546	or return;
2000		2547
2001	local $/;	2548	local $/;
2002	*CFG = YAML::Syck::Load <$fh>;	2549	*CFG = YAML::Syck::Load <$fh>;
2003		2550
2004	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	2551	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2005		2552
		2553	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2554	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2555
2006	if (exists $CFG{mlockall}) {	2556	if (exists $CFG{mlockall}) {
2007	eval {	2557	eval {
2008	$CFG{mlockall} ? &mlockall : &munlockall	2558	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2009	and die "WARNING: m(un)lockall failed: $!\n";	2559	and die "WARNING: m(un)lockall failed: $!\n";
2010	};	2560	};
2011	warn $@ if $@;	2561	warn $@ if $@;
2012	}	2562	}
2013	}	2563	}
2014		2564
2015	sub main {	2565	sub main {
2016	# we must not ever block the main coroutine	2566	# we must not ever block the main coroutine
2017	local $Coro::idle = sub {	2567	local $Coro::idle = sub {
2018	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	2568	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2019	(Coro::unblock_sub {	2569	(async {
2020	Event::one_event;	2570	Event::one_event;
2021	})->();	2571	})->prio (Coro::PRIO_MAX);
2022	};	2572	};
2023		2573
2024	cfg_load;	2574	cfg_load;
2025	db_load;	2575	db_init;
2026	load_extensions;	2576	load_extensions;
		2577
		2578	$TICK_WATCHER->start;
2027	Event::loop;	2579	Event::loop;
2028	}	2580	}
2029		2581
2030	#############################################################################	2582	#############################################################################
2031	# initialisation	2583	# initialisation and cleanup
2032		2584
		2585	# install some emergency cleanup handlers
		2586	BEGIN {
		2587	for my $signal (qw(INT HUP TERM)) {
		2588	Event->signal (
		2589	reentrant => 0,
		2590	data => WF_AUTOCANCEL,
		2591	signal => $signal,
		2592	prio => 0,
		2593	cb => sub {
		2594	cf::cleanup "SIG$signal";
		2595	},
		2596	);
		2597	}
		2598	}
		2599
		2600	sub emergency_save() {
		2601	my $freeze_guard = cf::freeze_mainloop;
		2602
		2603	warn "enter emergency perl save\n";
		2604
		2605	cf::sync_job {
		2606	# use a peculiar iteration method to avoid tripping on perl
		2607	# refcount bugs in for. also avoids problems with players
		2608	# and maps saved/destroyed asynchronously.
		2609	warn "begin emergency player save\n";
		2610	for my $login (keys %cf::PLAYER) {
		2611	my $pl = $cf::PLAYER{$login} or next;
		2612	$pl->valid or next;
		2613	$pl->save;
		2614	}
		2615	warn "end emergency player save\n";
		2616
		2617	warn "begin emergency map save\n";
		2618	for my $path (keys %cf::MAP) {
		2619	my $map = $cf::MAP{$path} or next;
		2620	$map->valid or next;
		2621	$map->save;
		2622	}
		2623	warn "end emergency map save\n";
		2624
		2625	warn "begin emergency database checkpoint\n";
		2626	BDB::db_env_txn_checkpoint $DB_ENV;
		2627	warn "end emergency database checkpoint\n";
		2628	};
		2629
		2630	warn "leave emergency perl save\n";
		2631	}
		2632
		2633	sub post_cleanup {
		2634	my ($make_core) = @_;
		2635
		2636	warn Carp::longmess "post_cleanup backtrace"
		2637	if $make_core;
		2638	}
		2639
2033	sub reload() {	2640	sub do_reload_perl() {
2034	# can/must only be called in main	2641	# can/must only be called in main
2035	if ($Coro::current != $Coro::main) {	2642	if ($Coro::current != $Coro::main) {
2036	warn "can only reload from main coroutine\n";	2643	warn "can only reload from main coroutine";
2037	return;	2644	return;
2038	}	2645	}
2039		2646
2040	warn "reloading...";	2647	warn "reloading...";
2041		2648
2042	my $guard = freeze_mainloop;	2649	warn "entering sync_job";
		2650
		2651	cf::sync_job {
		2652	cf::write_runtime; # external watchdog should not bark
2043	cf::emergency_save;	2653	cf::emergency_save;
		2654	cf::write_runtime; # external watchdog should not bark
2044		2655
2045	eval {	2656	warn "syncing database to disk";
		2657	BDB::db_env_txn_checkpoint $DB_ENV;
		2658
2046	# if anything goes wrong in here, we should simply crash as we already saved	2659	# if anything goes wrong in here, we should simply crash as we already saved
2047		2660
2048	# cancel all watchers	2661	warn "cancelling all WF_AUTOCANCEL watchers";
2049	for (Event::all_watchers) {	2662	for (Event::all_watchers) {
2050	$_->cancel if $_->data & WF_AUTOCANCEL;	2663	$_->cancel if $_->data & WF_AUTOCANCEL;
2051	}	2664	}
2052		2665
		2666	warn "flushing outstanding aio requests";
		2667	for (;;) {
		2668	BDB::flush;
		2669	IO::AIO::flush;
		2670	Coro::cede;
		2671	last unless IO::AIO::nreqs || BDB::nreqs;
		2672	warn "iterate...";
		2673	}
		2674
		2675	++$RELOAD;
		2676
2053	# cancel all extension coros	2677	warn "cancelling all extension coros";
2054	$_->cancel for values %EXT_CORO;	2678	$_->cancel for values %EXT_CORO;
2055	%EXT_CORO = ();	2679	%EXT_CORO = ();
2056		2680
2057	# unload all extensions	2681	warn "removing commands";
2058	for (@exts) {	2682	%COMMAND = ();
		2683
		2684	warn "removing ext commands";
		2685	%EXTCMD = ();
		2686
		2687	warn "unloading/nuking all extensions";
		2688	for my $pkg (@EXTS) {
2059	warn "unloading <$_>";	2689	warn "... unloading $pkg";
2060	unload_extension $_;	2690
		2691	if (my $cb = $pkg->can ("unload")) {
		2692	eval {
		2693	$cb->($pkg);
		2694	1
		2695	} or warn "$pkg unloaded, but with errors: $@";
2061	}	2696	}
2062		2697
		2698	warn "... nuking $pkg";
		2699	Symbol::delete_package $pkg;
		2700	}
		2701
2063	# unload all modules loaded from $LIBDIR	2702	warn "unloading all perl modules loaded from $LIBDIR";
2064	while (my ($k, $v) = each %INC) {	2703	while (my ($k, $v) = each %INC) {
2065	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2704	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2066		2705
2067	warn "removing <$k>";	2706	warn "... unloading $k";
2068	delete $INC{$k};	2707	delete $INC{$k};
2069		2708
2070	$k =~ s/\.pm$//;	2709	$k =~ s/\.pm$//;
2071	$k =~ s/\//::/g;	2710	$k =~ s/\//::/g;
2072		2711
…		…
2075	}	2714	}
2076		2715
2077	Symbol::delete_package $k;	2716	Symbol::delete_package $k;
2078	}	2717	}
2079		2718
2080	# sync database to disk
2081	cf::db_sync;
2082	IO::AIO::flush;
2083
2084	# get rid of safe::, as good as possible	2719	warn "getting rid of safe::, as good as possible";
2085	Symbol::delete_package "safe::$_"	2720	Symbol::delete_package "safe::$_"
2086	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2721	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2087		2722
2088	# remove register_script_function callbacks
2089	# TODO
2090
2091	# unload cf.pm "a bit"	2723	warn "unloading cf.pm \"a bit\"";
2092	delete $INC{"cf.pm"};	2724	delete $INC{"cf.pm"};
		2725	delete $INC{"cf/pod.pm"};
2093		2726
2094	# don't, removes xs symbols, too,	2727	# don't, removes xs symbols, too,
2095	# and global variables created in xs	2728	# and global variables created in xs
2096	#Symbol::delete_package __PACKAGE__;	2729	#Symbol::delete_package __PACKAGE__;
2097		2730
2098	# reload cf.pm	2731	warn "unload completed, starting to reload now";
		2732
2099	warn "reloading cf.pm";	2733	warn "reloading cf.pm";
2100	require cf;	2734	require cf;
2101	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2735	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2102		2736
2103	# load config and database again	2737	warn "loading config and database again";
2104	cf::cfg_load;	2738	cf::cfg_load;
2105	cf::db_load;
2106		2739
2107	# load extensions
2108	warn "load extensions";	2740	warn "loading extensions";
2109	cf::load_extensions;	2741	cf::load_extensions;
2110		2742
2111	# reattach attachments to objects	2743	warn "reattaching attachments to objects/players";
2112	warn "reattach";	2744	_global_reattach; # objects, sockets
2113	_global_reattach;	2745	warn "reattaching attachments to maps";
2114	};	2746	reattach $_ for values %MAP;
		2747	warn "reattaching attachments to players";
		2748	reattach $_ for values %PLAYER;
2115		2749
2116	if ($@) {	2750	warn "leaving sync_job";
		2751
		2752	1
		2753	} or do {
2117	warn $@;	2754	warn $@;
2118	warn "error while reloading, exiting.";	2755	warn "error while reloading, exiting.";
2119	exit 1;	2756	exit 1;
2120	}	2757	};
2121		2758
2122	warn "reloaded successfully";	2759	warn "reloaded";
2123	};	2760	};
2124		2761
2125	#############################################################################	2762	our $RELOAD_WATCHER; # used only during reload
2126		2763
2127	unless ($LINK_MAP) {	2764	sub reload_perl() {
2128	$LINK_MAP = cf::map::new;	2765	# doing reload synchronously and two reloads happen back-to-back,
		2766	# coro crashes during coro_state_free->destroy here.
2129		2767
2130	$LINK_MAP->width (41);	2768	$RELOAD_WATCHER ||= Event->timer (
2131	$LINK_MAP->height (41);	2769	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,	2770	after => 0,
		2771	data => WF_AUTOCANCEL,
2140	cb => sub {	2772	cb => sub {
2141	$_[0]->w->cancel;	2773	do_reload_perl;
2142		2774	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	});	2775	},
2161		2776	);
2162	$LINK_MAP->{deny_save} = 1;
2163	$LINK_MAP->{deny_reset} = 1;
2164
2165	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2166	}	2777	}
2167
2168	register "<global>", __PACKAGE__;
2169		2778
2170	register_command "reload" => sub {	2779	register_command "reload" => sub {
2171	my ($who, $arg) = @_;	2780	my ($who, $arg) = @_;
2172		2781
2173	if ($who->flag (FLAG_WIZ)) {	2782	if ($who->flag (FLAG_WIZ)) {
2174	$who->message ("start of reload.");
2175	reload;
2176	$who->message ("end of reload.");	2783	$who->message ("reloading server.");
		2784	async { reload_perl };
2177	}	2785	}
2178	};	2786	};
2179		2787
2180	unshift @INC, $LIBDIR;	2788	unshift @INC, $LIBDIR;
		2789
		2790	my $bug_warning = 0;
		2791
		2792	our @WAIT_FOR_TICK;
		2793	our @WAIT_FOR_TICK_BEGIN;
		2794
		2795	sub wait_for_tick {
		2796	return unless $TICK_WATCHER->is_active;
		2797	return if $Coro::current == $Coro::main;
		2798
		2799	my $signal = new Coro::Signal;
		2800	push @WAIT_FOR_TICK, $signal;
		2801	$signal->wait;
		2802	}
		2803
		2804	sub wait_for_tick_begin {
		2805	return unless $TICK_WATCHER->is_active;
		2806	return if $Coro::current == $Coro::main;
		2807
		2808	my $signal = new Coro::Signal;
		2809	push @WAIT_FOR_TICK_BEGIN, $signal;
		2810	$signal->wait;
		2811	}
2181		2812
2182	$TICK_WATCHER = Event->timer (	2813	$TICK_WATCHER = Event->timer (
2183	reentrant => 0,	2814	reentrant => 0,
		2815	parked => 1,
2184	prio => 0,	2816	prio => 0,
2185	at => $NEXT_TICK || $TICK,	2817	at => $NEXT_TICK || $TICK,
2186	data => WF_AUTOCANCEL,	2818	data => WF_AUTOCANCEL,
2187	cb => sub {	2819	cb => sub {
		2820	if ($Coro::current != $Coro::main) {
		2821	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2822	unless ++$bug_warning > 10;
		2823	return;
		2824	}
		2825
		2826	$NOW = Event::time;
		2827
2188	cf::server_tick; # one server iteration	2828	cf::server_tick; # one server iteration
		2829
2189	$RUNTIME += $TICK;	2830	$RUNTIME += $TICK;
2190	$NEXT_TICK += $TICK;	2831	$NEXT_TICK += $TICK;
2191		2832
		2833	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		2834	$NEXT_RUNTIME_WRITE = $NOW + 10;
		2835	Coro::async_pool {
		2836	write_runtime
		2837	or warn "ERROR: unable to write runtime file: $!";
		2838	};
		2839	}
		2840
		2841	# my $AFTER = Event::time;
		2842	# warn $AFTER - $NOW;#d#
		2843
2192	# if we are delayed by four ticks or more, skip them all	2844	# if we are delayed by four ticks or more, skip them all
2193	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2845	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2194		2846
2195	$TICK_WATCHER->at ($NEXT_TICK);	2847	$TICK_WATCHER->at ($NEXT_TICK);
2196	$TICK_WATCHER->start;	2848	$TICK_WATCHER->start;
		2849
		2850	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		2851	$sig->send;
		2852	}
		2853	while (my $sig = shift @WAIT_FOR_TICK) {
		2854	$sig->send;
		2855	}
		2856
		2857	_post_tick;
2197	},	2858	},
2198	);	2859	);
2199		2860
		2861	{
2200	IO::AIO::max_poll_time $TICK * 0.2;	2862	BDB::max_poll_time $TICK * 0.1;
2201		2863	$BDB_POLL_WATCHER = Event->io (
2202	Event->io (	2864	reentrant => 0,
2203	fd => IO::AIO::poll_fileno,	2865	fd => BDB::poll_fileno,
2204	poll => 'r',	2866	poll => 'r',
2205	prio => 5,	2867	prio => 0,
2206	data => WF_AUTOCANCEL,
2207	cb => \&IO::AIO::poll_cb,
2208	);
2209
2210	Event->timer (
2211	data => WF_AUTOCANCEL,	2868	data => WF_AUTOCANCEL,
2212	after => 0,	2869	cb => \&BDB::poll_cb,
2213	interval => 10,	2870	);
2214	cb => sub {	2871	BDB::min_parallel 8;
2215	(Coro::unblock_sub {	2872
2216	write_runtime	2873	BDB::set_sync_prepare {
2217	or warn "ERROR: unable to write runtime file: $!";	2874	my $status;
		2875	my $current = $Coro::current;
		2876	(
		2877	sub {
		2878	$status = $!;
		2879	$current->ready; undef $current;
		2880	},
		2881	sub {
		2882	Coro::schedule while defined $current;
		2883	$! = $status;
		2884	},
		2885	)
		2886	};
		2887
		2888	unless ($DB_ENV) {
		2889	$DB_ENV = BDB::db_env_create;
		2890
		2891	cf::sync_job {
		2892	eval {
		2893	BDB::db_env_open
		2894	$DB_ENV,
		2895	$BDBDIR,
		2896	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		2897	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		2898	0666;
		2899
		2900	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		2901
		2902	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		2903	$DB_ENV->set_lk_detect;
		2904	};
		2905
		2906	cf::cleanup "db_env_open(db): $@" if $@;
2218	})->();	2907	};
2219	},	2908	}
2220	);	2909	}
		2910
		2911	{
		2912	IO::AIO::min_parallel 8;
		2913
		2914	undef $Coro::AIO::WATCHER;
		2915	IO::AIO::max_poll_time $TICK * 0.1;
		2916	$AIO_POLL_WATCHER = Event->io (
		2917	reentrant => 0,
		2918	data => WF_AUTOCANCEL,
		2919	fd => IO::AIO::poll_fileno,
		2920	poll => 'r',
		2921	prio => 6,
		2922	cb => \&IO::AIO::poll_cb,
		2923	);
		2924	}
		2925
		2926	# load additional modules
		2927	use cf::pod;
2221		2928
2222	END { cf::emergency_save }	2929	END { cf::emergency_save }
2223		2930
2224	1	2931	1
2225		2932

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