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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.134 by root, Thu Jan 4 17:28:49 2007 UTC vs.
Revision 1.260 by root, Fri Apr 27 19:53:05 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 $path->save_path;
1213
1214	Coro::cede;
1215
1216	if ($map) {
1217	$map->last_access ((delete $map->{last_access})
1218	|| $cf::RUNTIME); #d#
1219	# safety
1220	$map->{instantiate_time} = $cf::RUNTIME
1221	if $map->{instantiate_time} > $cf::RUNTIME;
1222	} else {
1223	if (my $rmp = $path->random_map_params) {
1224	$map = generate_random_map $key, $rmp;
1225	} else {
1226	$map = try_load_header $path->load_path;
1227	}
1228
1229	$map or return;	1467	or return;
1230		1468
1231	$map->{load_original} = 1;
1232	$map->{instantiate_time} = $cf::RUNTIME;
1233	$map->last_access ($cf::RUNTIME);
1234	$map->instantiate;
1235
1236	# per-player maps become, after loading, normal maps
1237	$map->per_player (0) if $path->{user_rel};
1238	}
1239
1240	$map->path ($key);
1241	$map->{path} = $path;
1242	$map->{last_save} = $cf::RUNTIME;	1469	$map->{last_save} = $cf::RUNTIME;
1243		1470
1244	Coro::cede;	1471	$map->load_header
		1472	or return;
1245		1473
1246	if ($map->should_reset) {	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;
1247	$map->reset;	1477	$map->reset;
1248	undef $guard;	1478	undef $guard;
1249	$map = find $path	1479	return find $path;
1250	or return;
1251	}	1480	}
1252		1481
1253	$cf::MAP{$key} = $map	1482	$cf::MAP{$path} = $map
1254	}	1483	}
1255	}	1484	}
		1485
		1486	sub pre_load { }
		1487	sub post_load { }
1256		1488
1257	sub load {	1489	sub load {
1258	my ($self) = @_;	1490	my ($self) = @_;
1259		1491
		1492	local $self->{deny_reset} = 1; # loading can take a long time
		1493
1260	my $path = $self->{path};	1494	my $path = $self->{path};
		1495
		1496	{
1261	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1497	my $guard = cf::lock_acquire "map_load:$path";
1262		1498
1263	return if $self->in_memory != cf::MAP_SWAPPED;	1499	return if $self->in_memory != cf::MAP_SWAPPED;
1264		1500
1265	$self->in_memory (cf::MAP_LOADING);	1501	$self->in_memory (cf::MAP_LOADING);
1266		1502
1267	$self->alloc;	1503	$self->alloc;
		1504
		1505	$self->pre_load;
		1506	Coro::cede;
		1507
1268	$self->load_objects ($self->{load_path}, 1)	1508	$self->_load_objects ($self->{load_path}, 1)
1269	or return;	1509	or return;
1270		1510
1271	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1511	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1272	if delete $self->{load_original};	1512	if delete $self->{load_original};
1273		1513
1274	if (my $uniq = $path->uniq_path) {	1514	if (my $uniq = $self->uniq_path) {
1275	utf8::encode $uniq;	1515	utf8::encode $uniq;
1276	if (aio_open $uniq, O_RDONLY, 0) {	1516	if (aio_open $uniq, O_RDONLY, 0) {
1277	$self->clear_unique_items;	1517	$self->clear_unique_items;
1278	$self->load_objects ($uniq, 0);	1518	$self->_load_objects ($uniq, 0);
1279	}	1519	}
1280	}	1520	}
1281		1521
1282	Coro::cede;	1522	Coro::cede;
1283
1284	# now do the right thing for maps	1523	# now do the right thing for maps
1285	$self->link_multipart_objects;	1524	$self->link_multipart_objects;
1286
1287	if ($self->{path}->is_style_map) {
1288	$self->{deny_save} = 1;
1289	$self->{deny_reset} = 1;
1290	} else {
1291	$self->fix_auto_apply;
1292	$self->decay_objects;
1293	$self->update_buttons;
1294	$self->set_darkness_map;
1295	$self->difficulty ($self->estimate_difficulty)	1525	$self->difficulty ($self->estimate_difficulty)
1296	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;
1297	$self->activate;	1536	$self->activate;
1298	}	1537	}
1299		1538
1300	Coro::cede;
1301
1302	$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	$neigh->load;
		1575	}
1303	}	1576	}
1304		1577
1305	sub find_sync {	1578	sub find_sync {
1306	my ($path, $origin) = @_;	1579	my ($path, $origin) = @_;
1307		1580
1308	cf::sync_job { cf::map::find $path, $origin }	1581	cf::sync_job { find $path, $origin }
1309	}	1582	}
1310		1583
1311	sub do_load_sync {	1584	sub do_load_sync {
1312	my ($map) = @_;	1585	my ($map) = @_;
1313		1586
1314	cf::sync_job { $map->load };	1587	cf::sync_job { $map->load };
1315	}	1588	}
1316		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	$MAP_PREFETCHER->prio (6);
		1616
		1617	()
		1618	}
		1619
1317	sub save {	1620	sub save {
1318	my ($self) = @_;	1621	my ($self) = @_;
1319		1622
		1623	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1624
1320	$self->{last_save} = $cf::RUNTIME;	1625	$self->{last_save} = $cf::RUNTIME;
1321		1626
1322	return unless $self->dirty;	1627	return unless $self->dirty;
1323		1628
1324	my $save = $self->{path}->save_path; utf8::encode $save;	1629	my $save = $self->save_path; utf8::encode $save;
1325	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	1630	my $uniq = $self->uniq_path; utf8::encode $uniq;
1326		1631
1327	$self->{load_path} = $save;	1632	$self->{load_path} = $save;
1328		1633
1329	return if $self->{deny_save};	1634	return if $self->{deny_save};
1330		1635
1331	local $self->{last_access} = $self->last_access;#d#	1636	local $self->{last_access} = $self->last_access;#d#
1332		1637
		1638	cf::async {
		1639	$_->contr->save for $self->players;
		1640	};
		1641
1333	if ($uniq) {	1642	if ($uniq) {
1334	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1643	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1335	$self->save_objects ($uniq, cf::IO_UNIQUES);	1644	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1336	} else {	1645	} else {
1337	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1646	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1338	}	1647	}
1339	}	1648	}
1340		1649
1341	sub swap_out {	1650	sub swap_out {
1342	my ($self) = @_;	1651	my ($self) = @_;
1343		1652
1344	# save first because save cedes	1653	# save first because save cedes
1345	$self->save;	1654	$self->save;
		1655
		1656	my $lock = cf::lock_acquire "map_data:" . $self->path;
1346		1657
1347	return if $self->players;	1658	return if $self->players;
1348	return if $self->in_memory != cf::MAP_IN_MEMORY;	1659	return if $self->in_memory != cf::MAP_IN_MEMORY;
1349	return if $self->{deny_save};	1660	return if $self->{deny_save};
1350		1661
…		…
1354		1665
1355	sub reset_at {	1666	sub reset_at {
1356	my ($self) = @_;	1667	my ($self) = @_;
1357		1668
1358	# TODO: safety, remove and allow resettable per-player maps	1669	# TODO: safety, remove and allow resettable per-player maps
1359	return 1e99 if $self->{path}{user_rel};	1670	return 1e99 if $self->isa ("ext::map_per_player");#d#
1360	return 1e99 if $self->{deny_reset};	1671	return 1e99 if $self->{deny_reset};
1361		1672
1362	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1673	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1363	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1674	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1364		1675
…		…
1369	my ($self) = @_;	1680	my ($self) = @_;
1370		1681
1371	$self->reset_at <= $cf::RUNTIME	1682	$self->reset_at <= $cf::RUNTIME
1372	}	1683	}
1373		1684
1374	sub unlink_save {
1375	my ($self) = @_;
1376
1377	utf8::encode (my $save = $self->{path}->save_path);
1378	aioreq_pri 3; IO::AIO::aio_unlink $save;
1379	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1380	}
1381
1382	sub rename {
1383	my ($self, $new_path) = @_;
1384
1385	$self->unlink_save;
1386
1387	delete $cf::MAP{$self->path};
1388	$self->{path} = new cf::path $new_path;
1389	$self->path ($self->{path}->as_string);
1390	$cf::MAP{$self->path} = $self;
1391
1392	$self->save;
1393	}
1394
1395	sub reset {	1685	sub reset {
1396	my ($self) = @_;	1686	my ($self) = @_;
1397		1687
		1688	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1689
1398	return if $self->players;	1690	return if $self->players;
1399	return if $self->{path}{user_rel};#d#	1691	return if $self->isa ("ext::map_per_player");#d#
1400		1692
1401	warn "resetting map ", $self->path;#d#	1693	warn "resetting map ", $self->path;#d#
1402		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
1403	delete $cf::MAP{$self->path};	1705	delete $cf::MAP{$self->path};
		1706
		1707	$self->clear;
1404		1708
1405	$_->clear_links_to ($self) for values %cf::MAP;	1709	$_->clear_links_to ($self) for values %cf::MAP;
1406		1710
1407	$self->unlink_save;	1711	$self->unlink_save;
1408	$self->destroy;	1712	$self->destroy;
…		…
1411	my $nuke_counter = "aaaa";	1715	my $nuke_counter = "aaaa";
1412		1716
1413	sub nuke {	1717	sub nuke {
1414	my ($self) = @_;	1718	my ($self) = @_;
1415		1719
		1720	delete $cf::MAP{$self->path};
		1721
		1722	$self->unlink_save;
		1723
		1724	bless $self, "cf::map";
		1725	delete $self->{deny_reset};
1416	$self->{deny_save} = 1;	1726	$self->{deny_save} = 1;
1417	$self->reset_timeout (1);	1727	$self->reset_timeout (1);
1418	$self->rename ("{nuke}/" . ($nuke_counter++));	1728	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1729
		1730	$cf::MAP{$self->path} = $self;
		1731
1419	$self->reset; # polite request, might not happen	1732	$self->reset; # polite request, might not happen
1420	}	1733	}
1421		1734
1422	sub customise_for {	1735	=item cf::map::unique_maps
1423	my ($map, $ob) = @_;
1424		1736
1425	if ($map->per_player) {	1737	Returns an arrayref of paths of all shared maps that have
1426	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	1738	instantiated unique items. May block.
1427	}
1428		1739
1429	$map	1740	=cut
1430	}
1431		1741
1432	sub emergency_save {	1742	sub unique_maps() {
1433	my $freeze_guard = cf::freeze_mainloop;	1743	my $files = aio_readdir $UNIQUEDIR
		1744	or return;
1434		1745
1435	warn "enter emergency map save\n";	1746	my @paths;
1436		1747
1437	cf::sync_job {	1748	for (@$files) {
1438	warn "begin emergency map save\n";	1749	utf8::decode $_;
1439	$_->save for values %cf::MAP;	1750	next if /\.pst$/;
		1751	next unless /^$PATH_SEP/o;
		1752
		1753	push @paths, cf::map::normalise $_;
1440	};	1754	}
1441		1755
1442	warn "end emergency map save\n";	1756	\@paths
1443	}	1757	}
1444		1758
1445	package cf;	1759	package cf;
1446		1760
1447	=back	1761	=back
1448		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
1449		1789
1450	=head3 cf::object::player	1790	=head3 cf::object::player
1451		1791
1452	=over 4	1792	=over 4
1453		1793
…		…
1493		1833
1494	=item $player_object->enter_link	1834	=item $player_object->enter_link
1495		1835
1496	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}>).
1497		1837
1498	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
1499	I<MUST> call C<leave_link> as soon as possible, though.	1839	I<MUST> call C<leave_link> as soon as possible, though.
1500		1840
		1841	Will never block.
		1842
1501	=item $player_object->leave_link ($map, $x, $y)	1843	=item $player_object->leave_link ($map, $x, $y)
1502		1844
1503	Moves the player out of the specila link map onto the given map. If the	1845	Moves the player out of the special C<{link}> map onto the specified
1504	map is not valid (or omitted), the player will be moved back to the	1846	map. If the map is not valid (or omitted), the player will be moved back
1505	location he/she was before the call to C<enter_link>, or, if that fails,	1847	to the location he/she was before the call to C<enter_link>, or, if that
1506	to the emergency map position.	1848	fails, to the emergency map position.
1507		1849
1508	Might block.	1850	Might block.
1509		1851
1510	=cut	1852	=cut
		1853
		1854	sub link_map {
		1855	unless ($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	$LINK_MAP
		1862	}
1511		1863
1512	sub cf::object::player::enter_link {	1864	sub cf::object::player::enter_link {
1513	my ($self) = @_;	1865	my ($self) = @_;
1514		1866
1515	$self->deactivate_recursive;	1867	$self->deactivate_recursive;
1516		1868
1517	return if $self->map == $LINK_MAP;	1869	return if UNIVERSAL::isa $self->map, "ext::map_link";
1518		1870
1519	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	1871	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1520	if $self->map;	1872	if $self->map;
1521		1873
1522	$self->enter_map ($LINK_MAP, 20, 20);	1874	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1523	}	1875	}
1524		1876
1525	sub cf::object::player::leave_link {	1877	sub cf::object::player::leave_link {
1526	my ($self, $map, $x, $y) = @_;	1878	my ($self, $map, $x, $y) = @_;
1527		1879
…		…
1545	# use -1 or undef as default coordinates, not 0, 0	1897	# use -1 or undef as default coordinates, not 0, 0
1546	($x, $y) = ($map->enter_x, $map->enter_y)	1898	($x, $y) = ($map->enter_x, $map->enter_y)
1547	if $x <=0 && $y <= 0;	1899	if $x <=0 && $y <= 0;
1548		1900
1549	$map->load;	1901	$map->load;
		1902	$map->load_diag;
1550		1903
		1904	return unless $self->contr->active;
1551	$self->activate_recursive;	1905	$self->activate_recursive;
		1906
		1907	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1552	$self->enter_map ($map, $x, $y);	1908	$self->enter_map ($map, $x, $y);
1553	}	1909	}
1554		1910
1555	cf::player->attach (	1911	cf::player->attach (
1556	on_logout => sub {	1912	on_logout => sub {
…		…
1568		1924
1569	# try to abort aborted map switching on player login :)	1925	# try to abort aborted map switching on player login :)
1570	# should happen only on crashes	1926	# should happen only on crashes
1571	if ($pl->ob->{_link_pos}) {	1927	if ($pl->ob->{_link_pos}) {
1572	$pl->ob->enter_link;	1928	$pl->ob->enter_link;
1573	cf::async {	1929	(async {
		1930	$pl->ob->reply (undef,
		1931	"There was an internal problem at your last logout, "
		1932	. "the server will try to bring you to your intended destination in a second.",
		1933	cf::NDI_RED);
1574	# we need this sleep as the login has a concurrent enter_exit running	1934	# we need this sleep as the login has a concurrent enter_exit running
1575	# and this sleep increases chances of the player not ending up in scorn	1935	# and this sleep increases chances of the player not ending up in scorn
1576	Coro::Timer::sleep 1;	1936	Coro::Timer::sleep 1;
1577	$pl->ob->leave_link;	1937	$pl->ob->leave_link;
1578	};	1938	})->prio (2);
1579	}	1939	}
1580	},	1940	},
1581	);	1941	);
1582		1942
1583	=item $player_object->goto_map ($path, $x, $y)	1943	=item $player_object->goto ($path, $x, $y)
1584		1944
1585	=cut	1945	=cut
1586		1946
1587	sub cf::object::player::goto_map {	1947	sub cf::object::player::goto {
1588	my ($self, $path, $x, $y) = @_;	1948	my ($self, $path, $x, $y) = @_;
1589		1949
1590	$self->enter_link;	1950	$self->enter_link;
1591		1951
1592	(cf::async {	1952	(async {
1593	$path = new cf::path $path;	1953	my $map = eval {
1594
1595	my $map = cf::map::find $path->as_string;	1954	my $map = cf::map::find $path;
1596	$map = $map->customise_for ($self) if $map;	1955	$map = $map->customise_for ($self) if $map;
1597		1956	$map
1598	# warn "entering ", $map->path, " at ($x, $y)\n"	1957	} or
1599	# if $map;
1600
1601	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	1958	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1602		1959
1603	$self->leave_link ($map, $x, $y);	1960	$self->leave_link ($map, $x, $y);
1604	})->prio (1);	1961	})->prio (1);
1605	}	1962	}
1606		1963
…		…
1610		1967
1611	sub parse_random_map_params {	1968	sub parse_random_map_params {
1612	my ($spec) = @_;	1969	my ($spec) = @_;
1613		1970
1614	my $rmp = { # defaults	1971	my $rmp = { # defaults
1615	xsize => 10,	1972	xsize => (cf::rndm 15, 40),
1616	ysize => 10,	1973	ysize => (cf::rndm 15, 40),
		1974	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		1975	#layout => string,
1617	};	1976	};
1618		1977
1619	for (split /\n/, $spec) {	1978	for (split /\n/, $spec) {
1620	my ($k, $v) = split /\s+/, $_, 2;	1979	my ($k, $v) = split /\s+/, $_, 2;
1621		1980
…		…
1625	$rmp	1984	$rmp
1626	}	1985	}
1627		1986
1628	sub prepare_random_map {	1987	sub prepare_random_map {
1629	my ($exit) = @_;	1988	my ($exit) = @_;
		1989
		1990	my $guard = cf::lock_acquire "exit_prepare:$exit";
1630		1991
1631	# all this does is basically replace the /! path by	1992	# all this does is basically replace the /! path by
1632	# a new random map path (?random/...) with a seed	1993	# a new random map path (?random/...) with a seed
1633	# that depends on the exit object	1994	# that depends on the exit object
1634		1995
1635	my $rmp = parse_random_map_params $exit->msg;	1996	my $rmp = parse_random_map_params $exit->msg;
1636		1997
1637	if ($exit->map) {	1998	if ($exit->map) {
1638	$rmp->{region} = $exit->map->region_name;	1999	$rmp->{region} = $exit->region->name;
1639	$rmp->{origin_map} = $exit->map->path;	2000	$rmp->{origin_map} = $exit->map->path;
1640	$rmp->{origin_x} = $exit->x;	2001	$rmp->{origin_x} = $exit->x;
1641	$rmp->{origin_y} = $exit->y;	2002	$rmp->{origin_y} = $exit->y;
1642	}	2003	}
1643		2004
1644	$rmp->{random_seed} ||= $exit->random_seed;	2005	$rmp->{random_seed} ||= $exit->random_seed;
1645		2006
1646	my $data = cf::to_json $rmp;	2007	my $data = cf::to_json $rmp;
1647	my $md5 = Digest::MD5::md5_hex $data;	2008	my $md5 = Digest::MD5::md5_hex $data;
		2009	my $meta = "$RANDOMDIR/$md5.meta";
1648		2010
1649	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2011	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1650	aio_write $fh, 0, (length $data), $data, 0;	2012	aio_write $fh, 0, (length $data), $data, 0;
		2013	undef $fh;
		2014	aio_rename "$meta~", $meta;
1651		2015
1652	$exit->slaying ("?random/$md5");	2016	$exit->slaying ("?random/$md5");
1653	$exit->msg (undef);	2017	$exit->msg (undef);
1654	}	2018	}
1655	}	2019	}
…		…
1657	sub cf::object::player::enter_exit {	2021	sub cf::object::player::enter_exit {
1658	my ($self, $exit) = @_;	2022	my ($self, $exit) = @_;
1659		2023
1660	return unless $self->type == cf::PLAYER;	2024	return unless $self->type == cf::PLAYER;
1661		2025
		2026	if ($exit->slaying eq "/!") {
		2027	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2028	# the problem is that $exit might not survive long enough
		2029	# so it needs to be done right now, right here
		2030	cf::sync_job { prepare_random_map $exit };
		2031	}
		2032
		2033	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2034	my $hp = $exit->stats->hp;
		2035	my $sp = $exit->stats->sp;
		2036
1662	$self->enter_link;	2037	$self->enter_link;
1663		2038
1664	(cf::async {	2039	(async {
1665	$self->deactivate_recursive; # just to be sure	2040	$self->deactivate_recursive; # just to be sure
1666	unless (eval {	2041	unless (eval {
1667	prepare_random_map $exit	2042	$self->goto ($slaying, $hp, $sp);
1668	if $exit->slaying eq "/!";
1669
1670	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1671	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
1672		2043
1673	1;	2044	1;
1674	}) {	2045	}) {
1675	$self->message ("Something went wrong deep within the crossfire server. "	2046	$self->message ("Something went wrong deep within the crossfire server. "
1676	. "I'll try to bring you back to the map you were before. "	2047	. "I'll try to bring you back to the map you were before. "
1677	. "Please report this to the dungeon master",	2048	. "Please report this to the dungeon master!",
1678	cf::NDI_UNIQUE | cf::NDI_RED);	2049	cf::NDI_UNIQUE | cf::NDI_RED);
1679		2050
1680	warn "ERROR in enter_exit: $@";	2051	warn "ERROR in enter_exit: $@";
1681	$self->leave_link;	2052	$self->leave_link;
1682	}	2053	}
1683	})->prio (1);	2054	})->prio (1);
…		…
1696		2067
1697	sub cf::client::send_drawinfo {	2068	sub cf::client::send_drawinfo {
1698	my ($self, $text, $flags) = @_;	2069	my ($self, $text, $flags) = @_;
1699		2070
1700	utf8::encode $text;	2071	utf8::encode $text;
1701	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2072	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1702	}	2073	}
1703		2074
		2075	=item $client->ext_event ($type, %msg)
		2076
		2077	Sends an exti event to the client.
		2078
		2079	=cut
		2080
		2081	sub cf::client::ext_event($$%) {
		2082	my ($self, $type, %msg) = @_;
		2083
		2084	$msg{msgtype} = "event_$type";
		2085	$self->send_packet ("ext " . cf::to_json \%msg);
		2086	}
1704		2087
1705	=item $success = $client->query ($flags, "text", \&cb)	2088	=item $success = $client->query ($flags, "text", \&cb)
1706		2089
1707	Queues a query to the client, calling the given callback with	2090	Queues a query to the client, calling the given callback with
1708	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2091	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
…		…
1737	# get handled first	2120	# get handled first
1738	my $queue = delete $ns->{query_queue}	2121	my $queue = delete $ns->{query_queue}
1739	or return; # be conservative, not sure how that can happen, but we saw a crash here	2122	or return; # be conservative, not sure how that can happen, but we saw a crash here
1740		2123
1741	(shift @$queue)->[1]->($msg);	2124	(shift @$queue)->[1]->($msg);
		2125	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1742		2126
1743	push @{ $ns->{query_queue} }, @$queue;	2127	push @{ $ns->{query_queue} }, @$queue;
1744		2128
1745	if (@{ $ns->{query_queue} } == @$queue) {	2129	if (@{ $ns->{query_queue} } == @$queue) {
1746	if (@$queue) {	2130	if (@$queue) {
…		…
1750	}	2134	}
1751	}	2135	}
1752	},	2136	},
1753	);	2137	);
1754		2138
1755	=item $client->coro (\&cb)	2139	=item $client->async (\&cb)
1756		2140
1757	Create a new coroutine, running the specified callback. The coroutine will	2141	Create a new coroutine, running the specified callback. The coroutine will
1758	be automatically cancelled when the client gets destroyed (e.g. on logout,	2142	be automatically cancelled when the client gets destroyed (e.g. on logout,
1759	or loss of connection).	2143	or loss of connection).
1760		2144
1761	=cut	2145	=cut
1762		2146
1763	sub cf::client::coro {	2147	sub cf::client::async {
1764	my ($self, $cb) = @_;	2148	my ($self, $cb) = @_;
1765		2149
1766	my $coro = &cf::async ($cb);	2150	my $coro = &Coro::async ($cb);
1767		2151
1768	$coro->on_destroy (sub {	2152	$coro->on_destroy (sub {
1769	delete $self->{_coro}{$coro+0};	2153	delete $self->{_coro}{$coro+0};
1770	});	2154	});
1771		2155
…		…
1804		2188
1805	# here we export the classes and methods available to script code	2189	# here we export the classes and methods available to script code
1806		2190
1807	=pod	2191	=pod
1808		2192
1809	The following fucntions and emthods are available within a safe environment:	2193	The following functions and methods are available within a safe environment:
1810		2194
1811	cf::object contr pay_amount pay_player map	2195	cf::object contr pay_amount pay_player map
1812	cf::object::player player	2196	cf::object::player player
1813	cf::player peaceful	2197	cf::player peaceful
1814	cf::map trigger	2198	cf::map trigger
…		…
1899	#############################################################################	2283	#############################################################################
1900		2284
1901	=head2 EXTENSION DATABASE SUPPORT	2285	=head2 EXTENSION DATABASE SUPPORT
1902		2286
1903	Crossfire maintains a very simple database for extension use. It can	2287	Crossfire maintains a very simple database for extension use. It can
1904	currently store anything that can be serialised using Storable, which	2288	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
1905	excludes objects.	2289	convert to/from binary).
1906		2290
1907	The parameter C<$family> should best start with the name of the extension	2291	The parameter C<$family> should best start with the name of the extension
1908	using it, it should be unique.	2292	using it, it should be unique.
1909		2293
1910	=over 4	2294	=over 4
1911		2295
1912	=item $hashref = cf::db_get $family
1913
1914	Return a hashref for use by the extension C<$family>, which can be
1915	modified. After modifications, you have to call C<cf::db_dirty> or
1916	C<cf::db_sync>.
1917
1918	=item $value = cf::db_get $family => $key	2296	=item $value = cf::db_get $family => $key
1919		2297
1920	Returns a single value from the database	2298	Returns a single value from the database.
1921
1922	=item cf::db_put $family => $hashref
1923
1924	Stores the given family hashref into the database. Updates are delayed, if
1925	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1926		2299
1927	=item cf::db_put $family => $key => $value	2300	=item cf::db_put $family => $key => $value
1928		2301
1929	Stores the given C<$value> in the family hash. Updates are delayed, if you	2302	Stores the given C<$value> in the family.
1930	want the data to be synced to disk immediately, use C<cf::db_sync>.
1931
1932	=item cf::db_dirty
1933
1934	Marks the database as dirty, to be updated at a later time.
1935
1936	=item cf::db_sync
1937
1938	Immediately write the database to disk I<if it is dirty>.
1939		2303
1940	=cut	2304	=cut
1941		2305
1942	our $DB;	2306	our $DB;
1943		2307
1944	{	2308	sub db_init {
1945	my $path = cf::localdir . "/database.pst";	2309	unless ($DB) {
		2310	$DB = BDB::db_create $DB_ENV;
1946		2311
1947	sub db_load() {	2312	cf::sync_job {
1948	$DB = stat $path ? Storable::retrieve $path : { };	2313	eval {
1949	}	2314	$DB->set_flags (BDB::CHKSUM);
1950		2315
1951	my $pid;	2316	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
1952		2317	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
1953	sub db_save() {	2318	cf::cleanup "db_open(db): $!" if $!;
1954	waitpid $pid, 0 if $pid;	2319	};
1955	if (0 == ($pid = fork)) {	2320	cf::cleanup "db_open(db): $@" if $@;
1956	$DB->{_meta}{version} = 1;
1957	Storable::nstore $DB, "$path~";
1958	rename "$path~", $path;
1959	cf::_exit 0 if defined $pid;
1960	}	2321	};
1961	}
1962
1963	my $dirty;
1964
1965	sub db_sync() {
1966	db_save if $dirty;
1967	undef $dirty;
1968	}
1969
1970	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1971	db_sync;
1972	});	2322	}
		2323	}
1973		2324
1974	sub db_dirty() {
1975	$dirty = 1;
1976	$idle->start;
1977	}
1978
1979	sub db_get($;$) {	2325	sub db_get($$) {
1980	@_ >= 2	2326	my $key = "$_[0]/$_[1]";
1981	? $DB->{$_[0]}{$_[1]}
1982	: ($DB->{$_[0]} ||= { })
1983	}
1984		2327
		2328	cf::sync_job {
		2329	BDB::db_get $DB, undef, $key, my $data;
		2330
		2331	$! ? ()
		2332	: $data
		2333	}
		2334	}
		2335
1985	sub db_put($$;$) {	2336	sub db_put($$$) {
1986	if (@_ >= 3) {	2337	BDB::dbreq_pri 4;
1987	$DB->{$_[0]}{$_[1]} = $_[2];	2338	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
1988	} else {	2339	}
1989	$DB->{$_[0]} = $_[1];
1990	}
1991	db_dirty;
1992	}
1993		2340
1994	cf::global->attach (	2341	=item cf::cache $id => [$paths...], $processversion => $process
1995	prio => 10000,	2342
1996	on_cleanup => sub {	2343	Generic caching function that returns the value of the resource $id,
1997	db_sync;	2344	caching and regenerating as required.
		2345
		2346	This function can block.
		2347
		2348	=cut
		2349
		2350	sub cache {
		2351	my ($id, $src, $processversion, $process) = @_;
		2352
		2353	my $meta =
		2354	join "\x00",
		2355	$processversion,
		2356	map {
		2357	aio_stat $_
		2358	and Carp::croak "$_: $!";
		2359
		2360	($_, (stat _)[7,9])
		2361	} @$src;
		2362
		2363	my $dbmeta = db_get cache => "$id/meta";
		2364	if ($dbmeta ne $meta) {
		2365	# changed, we may need to process
		2366
		2367	my @data;
		2368	my $md5;
		2369
		2370	for (0 .. $#$src) {
		2371	0 <= aio_load $src->[$_], $data[$_]
		2372	or Carp::croak "$src->[$_]: $!";
1998	},	2373	}
1999	);	2374
		2375	# if processing is expensive, check
		2376	# checksum first
		2377	if (1) {
		2378	$md5 =
		2379	join "\x00",
		2380	$processversion,
		2381	map {
		2382	Coro::cede;
		2383	($src->[$_], Digest::MD5::md5_hex $data[$_])
		2384	} 0.. $#$src;
		2385
		2386
		2387	my $dbmd5 = db_get cache => "$id/md5";
		2388	if ($dbmd5 eq $md5) {
		2389	db_put cache => "$id/meta", $meta;
		2390
		2391	return db_get cache => "$id/data";
		2392	}
		2393	}
		2394
		2395	my $t1 = Time::HiRes::time;
		2396	my $data = $process->(\@data);
		2397	my $t2 = Time::HiRes::time;
		2398
		2399	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		2400
		2401	db_put cache => "$id/data", $data;
		2402	db_put cache => "$id/md5" , $md5;
		2403	db_put cache => "$id/meta", $meta;
		2404
		2405	return $data;
		2406	}
		2407
		2408	db_get cache => "$id/data"
2000	}	2409	}
		2410
		2411	=item fork_call { }, $args
		2412
		2413	Executes the given code block with the given arguments in a seperate
		2414	process, returning the results. Everything must be serialisable with
		2415	Coro::Storable. May, of course, block. Note that the executed sub may
		2416	never block itself or use any form of Event handling.
		2417
		2418	=cut
		2419
		2420	sub fork_call(&@) {
		2421	my ($cb, @args) = @_;
		2422
		2423	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		2424	# or die "socketpair: $!";
		2425	pipe my $fh1, my $fh2
		2426	or die "pipe: $!";
		2427
		2428	if (my $pid = fork) {
		2429	close $fh2;
		2430
		2431	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
		2432	$res = Coro::Storable::thaw $res;
		2433
		2434	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		2435
		2436	die $$res unless "ARRAY" eq ref $res;
		2437
		2438	return wantarray ? @$res : $res->[-1];
		2439	} else {
		2440	local $SIG{__WARN__};
		2441	eval {
		2442	local $SIG{__DIE__};
		2443	close $fh1;
		2444
		2445	my @res = eval { $cb->(@args) };
		2446	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
		2447	};
		2448
		2449	warn $@ if $@;
		2450	_exit 0;
		2451	}
		2452	}
		2453
		2454
2001		2455
2002	#############################################################################	2456	#############################################################################
2003	# the server's main()	2457	# the server's init and main functions
		2458
		2459	sub load_facedata($) {
		2460	my ($path) = @_;
		2461
		2462	warn "loading facedata from $path\n";
		2463
		2464	my $facedata;
		2465	0 < aio_load $path, $facedata
		2466	or die "$path: $!";
		2467
		2468	$facedata = Coro::Storable::thaw $facedata;
		2469
		2470	$facedata->{version} == 2
		2471	or cf::cleanup "$path: version mismatch, cannot proceed.";
		2472
		2473	{
		2474	my $faces = $facedata->{faceinfo};
		2475
		2476	while (my ($face, $info) = each %$faces) {
		2477	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		2478	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
		2479	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2480	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
		2481	Coro::cede;
		2482	}
		2483
		2484	while (my ($face, $info) = each %$faces) {
		2485	next unless $info->{smooth};
		2486	my $idx = cf::face::find $face
		2487	or next;
		2488	if (my $smooth = cf::face::find $info->{smooth}) {
		2489	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2490	} else {
		2491	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2492	}
		2493	Coro::cede;
		2494	}
		2495	}
		2496
		2497	{
		2498	my $anims = $facedata->{animinfo};
		2499
		2500	while (my ($anim, $info) = each %$anims) {
		2501	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2502	Coro::cede;
		2503	}
		2504
		2505	cf::anim::invalidate_all; # d'oh
		2506	}
		2507
		2508	1
		2509	}
		2510
		2511	sub reload_regions {
		2512	load_resource_file "$MAPDIR/regions"
		2513	or die "unable to load regions file\n";
		2514	}
		2515
		2516	sub reload_facedata {
		2517	load_facedata "$DATADIR/facedata"
		2518	or die "unable to load facedata\n";
		2519	}
		2520
		2521	sub reload_archetypes {
		2522	load_resource_file "$DATADIR/archetypes"
		2523	or die "unable to load archetypes\n";
		2524	}
		2525
		2526	sub reload_treasures {
		2527	load_resource_file "$DATADIR/treasures"
		2528	or die "unable to load treasurelists\n";
		2529	}
		2530
		2531	sub reload_resources {
		2532	warn "reloading resource files...\n";
		2533
		2534	reload_regions;
		2535	reload_facedata;
		2536	reload_archetypes;
		2537	reload_treasures;
		2538
		2539	warn "finished reloading resource files\n";
		2540	}
		2541
		2542	sub init {
		2543	reload_resources;
		2544	}
2004		2545
2005	sub cfg_load {	2546	sub cfg_load {
2006	open my $fh, "<:utf8", cf::confdir . "/config"	2547	open my $fh, "<:utf8", "$CONFDIR/config"
2007	or return;	2548	or return;
2008		2549
2009	local $/;	2550	local $/;
2010	*CFG = YAML::Syck::Load <$fh>;	2551	*CFG = YAML::Syck::Load <$fh>;
2011		2552
2012	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	2553	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2013		2554
		2555	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2556	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2557
2014	if (exists $CFG{mlockall}) {	2558	if (exists $CFG{mlockall}) {
2015	eval {	2559	eval {
2016	$CFG{mlockall} ? &mlockall : &munlockall	2560	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2017	and die "WARNING: m(un)lockall failed: $!\n";	2561	and die "WARNING: m(un)lockall failed: $!\n";
2018	};	2562	};
2019	warn $@ if $@;	2563	warn $@ if $@;
2020	}	2564	}
2021	}	2565	}
2022		2566
2023	sub main {	2567	sub main {
2024	# we must not ever block the main coroutine	2568	# we must not ever block the main coroutine
2025	local $Coro::idle = sub {	2569	local $Coro::idle = sub {
2026	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	2570	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2027	(Coro::unblock_sub {	2571	(async {
2028	Event::one_event;	2572	Event::one_event;
2029	})->();	2573	})->prio (Coro::PRIO_MAX);
2030	};	2574	};
2031		2575
2032	cfg_load;	2576	cfg_load;
2033	db_load;	2577	db_init;
2034	load_extensions;	2578	load_extensions;
		2579
		2580	$TICK_WATCHER->start;
2035	Event::loop;	2581	Event::loop;
2036	}	2582	}
2037		2583
2038	#############################################################################	2584	#############################################################################
2039	# initialisation	2585	# initialisation and cleanup
2040		2586
		2587	# install some emergency cleanup handlers
		2588	BEGIN {
		2589	for my $signal (qw(INT HUP TERM)) {
		2590	Event->signal (
		2591	reentrant => 0,
		2592	data => WF_AUTOCANCEL,
		2593	signal => $signal,
		2594	prio => 0,
		2595	cb => sub {
		2596	cf::cleanup "SIG$signal";
		2597	},
		2598	);
		2599	}
		2600	}
		2601
		2602	sub emergency_save() {
		2603	my $freeze_guard = cf::freeze_mainloop;
		2604
		2605	warn "enter emergency perl save\n";
		2606
		2607	cf::sync_job {
		2608	# use a peculiar iteration method to avoid tripping on perl
		2609	# refcount bugs in for. also avoids problems with players
		2610	# and maps saved/destroyed asynchronously.
		2611	warn "begin emergency player save\n";
		2612	for my $login (keys %cf::PLAYER) {
		2613	my $pl = $cf::PLAYER{$login} or next;
		2614	$pl->valid or next;
		2615	$pl->save;
		2616	}
		2617	warn "end emergency player save\n";
		2618
		2619	warn "begin emergency map save\n";
		2620	for my $path (keys %cf::MAP) {
		2621	my $map = $cf::MAP{$path} or next;
		2622	$map->valid or next;
		2623	$map->save;
		2624	}
		2625	warn "end emergency map save\n";
		2626
		2627	warn "begin emergency database checkpoint\n";
		2628	BDB::db_env_txn_checkpoint $DB_ENV;
		2629	warn "end emergency database checkpoint\n";
		2630	};
		2631
		2632	warn "leave emergency perl save\n";
		2633	}
		2634
		2635	sub post_cleanup {
		2636	my ($make_core) = @_;
		2637
		2638	warn Carp::longmess "post_cleanup backtrace"
		2639	if $make_core;
		2640	}
		2641
2041	sub reload() {	2642	sub do_reload_perl() {
2042	# can/must only be called in main	2643	# can/must only be called in main
2043	if ($Coro::current != $Coro::main) {	2644	if ($Coro::current != $Coro::main) {
2044	warn "can only reload from main coroutine\n";	2645	warn "can only reload from main coroutine";
2045	return;	2646	return;
2046	}	2647	}
2047		2648
2048	warn "reloading...";	2649	warn "reloading...";
2049		2650
2050	my $guard = freeze_mainloop;	2651	warn "entering sync_job";
		2652
		2653	cf::sync_job {
		2654	cf::write_runtime; # external watchdog should not bark
2051	cf::emergency_save;	2655	cf::emergency_save;
		2656	cf::write_runtime; # external watchdog should not bark
2052		2657
2053	eval {	2658	warn "syncing database to disk";
		2659	BDB::db_env_txn_checkpoint $DB_ENV;
		2660
2054	# if anything goes wrong in here, we should simply crash as we already saved	2661	# if anything goes wrong in here, we should simply crash as we already saved
2055		2662
2056	# cancel all watchers	2663	warn "cancelling all WF_AUTOCANCEL watchers";
2057	for (Event::all_watchers) {	2664	for (Event::all_watchers) {
2058	$_->cancel if $_->data & WF_AUTOCANCEL;	2665	$_->cancel if $_->data & WF_AUTOCANCEL;
2059	}	2666	}
2060		2667
		2668	warn "flushing outstanding aio requests";
		2669	for (;;) {
		2670	BDB::flush;
		2671	IO::AIO::flush;
		2672	Coro::cede;
		2673	last unless IO::AIO::nreqs || BDB::nreqs;
		2674	warn "iterate...";
		2675	}
		2676
		2677	++$RELOAD;
		2678
2061	# cancel all extension coros	2679	warn "cancelling all extension coros";
2062	$_->cancel for values %EXT_CORO;	2680	$_->cancel for values %EXT_CORO;
2063	%EXT_CORO = ();	2681	%EXT_CORO = ();
2064		2682
2065	# unload all extensions	2683	warn "removing commands";
2066	for (@exts) {	2684	%COMMAND = ();
		2685
		2686	warn "removing ext commands";
		2687	%EXTCMD = ();
		2688
		2689	warn "unloading/nuking all extensions";
		2690	for my $pkg (@EXTS) {
2067	warn "unloading <$_>";	2691	warn "... unloading $pkg";
2068	unload_extension $_;	2692
		2693	if (my $cb = $pkg->can ("unload")) {
		2694	eval {
		2695	$cb->($pkg);
		2696	1
		2697	} or warn "$pkg unloaded, but with errors: $@";
2069	}	2698	}
2070		2699
		2700	warn "... nuking $pkg";
		2701	Symbol::delete_package $pkg;
		2702	}
		2703
2071	# unload all modules loaded from $LIBDIR	2704	warn "unloading all perl modules loaded from $LIBDIR";
2072	while (my ($k, $v) = each %INC) {	2705	while (my ($k, $v) = each %INC) {
2073	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2706	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2074		2707
2075	warn "removing <$k>";	2708	warn "... unloading $k";
2076	delete $INC{$k};	2709	delete $INC{$k};
2077		2710
2078	$k =~ s/\.pm$//;	2711	$k =~ s/\.pm$//;
2079	$k =~ s/\//::/g;	2712	$k =~ s/\//::/g;
2080		2713
…		…
2083	}	2716	}
2084		2717
2085	Symbol::delete_package $k;	2718	Symbol::delete_package $k;
2086	}	2719	}
2087		2720
2088	# sync database to disk
2089	cf::db_sync;
2090	IO::AIO::flush;
2091
2092	# get rid of safe::, as good as possible	2721	warn "getting rid of safe::, as good as possible";
2093	Symbol::delete_package "safe::$_"	2722	Symbol::delete_package "safe::$_"
2094	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2723	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2095		2724
2096	# remove register_script_function callbacks
2097	# TODO
2098
2099	# unload cf.pm "a bit"	2725	warn "unloading cf.pm \"a bit\"";
2100	delete $INC{"cf.pm"};	2726	delete $INC{"cf.pm"};
		2727	delete $INC{"cf/pod.pm"};
2101		2728
2102	# don't, removes xs symbols, too,	2729	# don't, removes xs symbols, too,
2103	# and global variables created in xs	2730	# and global variables created in xs
2104	#Symbol::delete_package __PACKAGE__;	2731	#Symbol::delete_package __PACKAGE__;
2105		2732
2106	# reload cf.pm	2733	warn "unload completed, starting to reload now";
		2734
2107	warn "reloading cf.pm";	2735	warn "reloading cf.pm";
2108	require cf;	2736	require cf;
2109	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2737	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2110		2738
2111	# load config and database again	2739	warn "loading config and database again";
2112	cf::cfg_load;	2740	cf::cfg_load;
2113	cf::db_load;
2114		2741
2115	# load extensions
2116	warn "load extensions";	2742	warn "loading extensions";
2117	cf::load_extensions;	2743	cf::load_extensions;
2118		2744
2119	# reattach attachments to objects	2745	warn "reattaching attachments to objects/players";
2120	warn "reattach";	2746	_global_reattach; # objects, sockets
2121	_global_reattach;	2747	warn "reattaching attachments to maps";
2122	};	2748	reattach $_ for values %MAP;
		2749	warn "reattaching attachments to players";
		2750	reattach $_ for values %PLAYER;
2123		2751
2124	if ($@) {	2752	warn "leaving sync_job";
		2753
		2754	1
		2755	} or do {
2125	warn $@;	2756	warn $@;
2126	warn "error while reloading, exiting.";	2757	warn "error while reloading, exiting.";
2127	exit 1;	2758	exit 1;
2128	}	2759	};
2129		2760
2130	warn "reloaded successfully";	2761	warn "reloaded";
2131	};	2762	};
2132		2763
2133	#############################################################################	2764	our $RELOAD_WATCHER; # used only during reload
2134		2765
2135	unless ($LINK_MAP) {	2766	sub reload_perl() {
2136	$LINK_MAP = cf::map::new;	2767	# doing reload synchronously and two reloads happen back-to-back,
		2768	# coro crashes during coro_state_free->destroy here.
2137		2769
2138	$LINK_MAP->width (41);	2770	$RELOAD_WATCHER ||= Event->timer (
2139	$LINK_MAP->height (41);	2771	reentrant => 0,
2140	$LINK_MAP->alloc;
2141	$LINK_MAP->path ("{link}");
2142	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2143	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2144
2145	# dirty hack because... archetypes are not yet loaded
2146	Event->timer (
2147	after => 2,	2772	after => 0,
		2773	data => WF_AUTOCANCEL,
2148	cb => sub {	2774	cb => sub {
2149	$_[0]->w->cancel;	2775	do_reload_perl;
2150		2776	undef $RELOAD_WATCHER;
2151	# provide some exits "home"
2152	my $exit = cf::object::new "exit";
2153
2154	$exit->slaying ($EMERGENCY_POSITION->[0]);
2155	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2156	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2157
2158	$LINK_MAP->insert ($exit->clone, 19, 19);
2159	$LINK_MAP->insert ($exit->clone, 19, 20);
2160	$LINK_MAP->insert ($exit->clone, 19, 21);
2161	$LINK_MAP->insert ($exit->clone, 20, 19);
2162	$LINK_MAP->insert ($exit->clone, 20, 21);
2163	$LINK_MAP->insert ($exit->clone, 21, 19);
2164	$LINK_MAP->insert ($exit->clone, 21, 20);
2165	$LINK_MAP->insert ($exit->clone, 21, 21);
2166
2167	$exit->destroy;
2168	});	2777	},
2169		2778	);
2170	$LINK_MAP->{deny_save} = 1;
2171	$LINK_MAP->{deny_reset} = 1;
2172
2173	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2174	}	2779	}
2175
2176	register "<global>", __PACKAGE__;
2177		2780
2178	register_command "reload" => sub {	2781	register_command "reload" => sub {
2179	my ($who, $arg) = @_;	2782	my ($who, $arg) = @_;
2180		2783
2181	if ($who->flag (FLAG_WIZ)) {	2784	if ($who->flag (FLAG_WIZ)) {
2182	$who->message ("start of reload.");
2183	reload;
2184	$who->message ("end of reload.");	2785	$who->message ("reloading server.");
		2786	async { reload_perl };
2185	}	2787	}
2186	};	2788	};
2187		2789
2188	unshift @INC, $LIBDIR;	2790	unshift @INC, $LIBDIR;
		2791
		2792	my $bug_warning = 0;
		2793
		2794	our @WAIT_FOR_TICK;
		2795	our @WAIT_FOR_TICK_BEGIN;
		2796
		2797	sub wait_for_tick {
		2798	return unless $TICK_WATCHER->is_active;
		2799	return if $Coro::current == $Coro::main;
		2800
		2801	my $signal = new Coro::Signal;
		2802	push @WAIT_FOR_TICK, $signal;
		2803	$signal->wait;
		2804	}
		2805
		2806	sub wait_for_tick_begin {
		2807	return unless $TICK_WATCHER->is_active;
		2808	return if $Coro::current == $Coro::main;
		2809
		2810	my $signal = new Coro::Signal;
		2811	push @WAIT_FOR_TICK_BEGIN, $signal;
		2812	$signal->wait;
		2813	}
2189		2814
2190	$TICK_WATCHER = Event->timer (	2815	$TICK_WATCHER = Event->timer (
2191	reentrant => 0,	2816	reentrant => 0,
		2817	parked => 1,
2192	prio => 0,	2818	prio => 0,
2193	at => $NEXT_TICK || $TICK,	2819	at => $NEXT_TICK || $TICK,
2194	data => WF_AUTOCANCEL,	2820	data => WF_AUTOCANCEL,
2195	cb => sub {	2821	cb => sub {
		2822	if ($Coro::current != $Coro::main) {
		2823	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2824	unless ++$bug_warning > 10;
		2825	return;
		2826	}
		2827
		2828	$NOW = Event::time;
		2829
2196	cf::server_tick; # one server iteration	2830	cf::server_tick; # one server iteration
		2831
2197	$RUNTIME += $TICK;	2832	$RUNTIME += $TICK;
2198	$NEXT_TICK += $TICK;	2833	$NEXT_TICK += $TICK;
2199		2834
		2835	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		2836	$NEXT_RUNTIME_WRITE = $NOW + 10;
		2837	Coro::async_pool {
		2838	write_runtime
		2839	or warn "ERROR: unable to write runtime file: $!";
		2840	};
		2841	}
		2842
		2843	# my $AFTER = Event::time;
		2844	# warn $AFTER - $NOW;#d#
		2845
2200	# if we are delayed by four ticks or more, skip them all	2846	# if we are delayed by four ticks or more, skip them all
2201	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2847	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2202		2848
2203	$TICK_WATCHER->at ($NEXT_TICK);	2849	$TICK_WATCHER->at ($NEXT_TICK);
2204	$TICK_WATCHER->start;	2850	$TICK_WATCHER->start;
		2851
		2852	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		2853	$sig->send;
		2854	}
		2855	while (my $sig = shift @WAIT_FOR_TICK) {
		2856	$sig->send;
		2857	}
		2858
		2859	_post_tick;
2205	},	2860	},
2206	);	2861	);
2207		2862
		2863	{
2208	IO::AIO::max_poll_time $TICK * 0.2;	2864	BDB::max_poll_time $TICK * 0.1;
2209		2865	$BDB_POLL_WATCHER = Event->io (
2210	Event->io (	2866	reentrant => 0,
2211	fd => IO::AIO::poll_fileno,	2867	fd => BDB::poll_fileno,
2212	poll => 'r',	2868	poll => 'r',
2213	prio => 5,	2869	prio => 0,
2214	data => WF_AUTOCANCEL,
2215	cb => \&IO::AIO::poll_cb,
2216	);
2217
2218	Event->timer (
2219	data => WF_AUTOCANCEL,	2870	data => WF_AUTOCANCEL,
2220	after => 0,	2871	cb => \&BDB::poll_cb,
2221	interval => 10,	2872	);
2222	cb => sub {	2873	BDB::min_parallel 8;
2223	(Coro::unblock_sub {	2874
2224	write_runtime	2875	BDB::set_sync_prepare {
2225	or warn "ERROR: unable to write runtime file: $!";	2876	my $status;
		2877	my $current = $Coro::current;
		2878	(
		2879	sub {
		2880	$status = $!;
		2881	$current->ready; undef $current;
		2882	},
		2883	sub {
		2884	Coro::schedule while defined $current;
		2885	$! = $status;
		2886	},
		2887	)
		2888	};
		2889
		2890	unless ($DB_ENV) {
		2891	$DB_ENV = BDB::db_env_create;
		2892
		2893	cf::sync_job {
		2894	eval {
		2895	BDB::db_env_open
		2896	$DB_ENV,
		2897	$BDBDIR,
		2898	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		2899	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		2900	0666;
		2901
		2902	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		2903
		2904	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		2905	$DB_ENV->set_lk_detect;
		2906	};
		2907
		2908	cf::cleanup "db_env_open(db): $@" if $@;
2226	})->();	2909	};
2227	},	2910	}
2228	);	2911	}
		2912
		2913	{
		2914	IO::AIO::min_parallel 8;
		2915
		2916	undef $Coro::AIO::WATCHER;
		2917	IO::AIO::max_poll_time $TICK * 0.1;
		2918	$AIO_POLL_WATCHER = Event->io (
		2919	reentrant => 0,
		2920	data => WF_AUTOCANCEL,
		2921	fd => IO::AIO::poll_fileno,
		2922	poll => 'r',
		2923	prio => 6,
		2924	cb => \&IO::AIO::poll_cb,
		2925	);
		2926	}
		2927
		2928	sub _log_backtrace {
		2929	my ($msg, @addr) = @_;
		2930
		2931	async {
		2932	my @bt = fork_call {
		2933	@addr = map { sprintf "%x", $_ } @addr;
		2934	open my $fh, "exec addr2line -C -f -i -e \Q$^X\E @addr 2>&1 |"
		2935	or die "addr2line: $!";
		2936
		2937	my @funcs;
		2938	my @res = <$fh>;
		2939	chomp for @res;
		2940	while (@res) {
		2941	my ($func, $line) = splice @res, 0, 2, ();
		2942	push @funcs, "[$func] $line";
		2943	}
		2944
		2945	@funcs
		2946	};
		2947
		2948	$msg =~ s/\n//;
		2949
		2950	LOG llevInfo, "[ABT] $msg\n";
		2951	LOG llevInfo, "[ABT] $_\n" for @bt;
		2952	};
		2953	}
		2954
		2955	# load additional modules
		2956	use cf::pod;
2229		2957
2230	END { cf::emergency_save }	2958	END { cf::emergency_save }
2231		2959
2232	1	2960	1
2233		2961

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