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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.130 by root, Thu Jan 4 00:08:08 2007 UTC vs.
Revision 1.257 by root, Sat Apr 21 17:34:24 2007 UTC

…		…
3	use utf8;	3	use utf8;
4	use strict;	4	use strict;
5		5
6	use Symbol;	6	use Symbol;
7	use List::Util;	7	use List::Util;
		8	use Socket;
8	use Storable;	9	use Storable;
		10	use Event;
9	use Opcode;	11	use Opcode;
10	use Safe;	12	use Safe;
11	use Safe::Hole;	13	use Safe::Hole;
12		14
13	use Coro 3.3 ();	15	use Coro 3.61 ();
		16	use Coro::State;
		17	use Coro::Handle;
14	use Coro::Event;	18	use Coro::Event;
15	use Coro::Timer;	19	use Coro::Timer;
16	use Coro::Signal;	20	use Coro::Signal;
17	use Coro::Semaphore;	21	use Coro::Semaphore;
18	use Coro::AIO;	22	use Coro::AIO;
		23	use Coro::Storable;
19		24
		25	use BDB ();
		26	use Data::Dumper;
20	use Digest::MD5;	27	use Digest::MD5;
21	use Fcntl;	28	use Fcntl;
22	use IO::AIO 2.31 ();
23	use YAML::Syck ();	29	use YAML::Syck ();
		30	use IO::AIO 2.32 ();
24	use Time::HiRes;	31	use Time::HiRes;
		32	use Compress::LZF;
25		33
		34	# configure various modules to our taste
		35	#
		36	$Storable::canonical = 1; # reduce rsync transfers
		37	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		38	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		39
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	40	$Event::Eval = 1; # no idea why this is required, but it is
27		41
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	42	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
29	$YAML::Syck::ImplicitUnicode = 1;	43	$YAML::Syck::ImplicitUnicode = 1;
30		44
31	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	45	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
32		46
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	47	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34		48
35	our %COMMAND = ();	49	our %COMMAND = ();
36	our %COMMAND_TIME = ();	50	our %COMMAND_TIME = ();
		51
		52	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	53	our %EXTCMD = ();
		54	our %EXT_CORO = (); # coroutines bound to extensions
		55	our %EXT_MAP = (); # pluggable maps
38		56
		57	our $RELOAD; # number of reloads so far
39	our @EVENT;	58	our @EVENT;
40	our $LIBDIR = datadir . "/ext";
41		59
42	our $TICK = MAX_TIME * 1e-6;	60	our $CONFDIR = confdir;
		61	our $DATADIR = datadir;
		62	our $LIBDIR = "$DATADIR/ext";
		63	our $PODDIR = "$DATADIR/pod";
		64	our $MAPDIR = "$DATADIR/" . mapdir;
		65	our $LOCALDIR = localdir;
		66	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		67	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		68	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		69	our $RANDOMDIR = "$LOCALDIR/random";
		70	our $BDBDIR = "$LOCALDIR/db";
		71
		72	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
43	our $TICK_WATCHER;	73	our $TICK_WATCHER;
		74	our $AIO_POLL_WATCHER;
		75	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	76	our $NEXT_TICK;
45	our $NOW;	77	our $NOW;
		78	our $USE_FSYNC = 1; # use fsync to write maps - default off
		79
		80	our $BDB_POLL_WATCHER;
		81	our $DB_ENV;
46		82
47	our %CFG;	83	our %CFG;
48		84
49	our $UPTIME; $UPTIME ||= time;	85	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	86	our $RUNTIME;
51		87
		88	our %PLAYER; # all users
52	our %MAP; # all maps	89	our %MAP; # all maps
53	our $LINK_MAP; # the special {link} map	90	our $LINK_MAP; # the special {link} map, which is always available
54	our $FREEZE;	91
55	our $RANDOM_MAPS = cf::localdir . "/random";	92	# used to convert map paths into valid unix filenames by replacing / by ∕
56	our %EXT_CORO;	93	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
57		94
58	binmode STDOUT;	95	binmode STDOUT;
59	binmode STDERR;	96	binmode STDERR;
60		97
61	# read virtual server time, if available	98	# read virtual server time, if available
62	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	99	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
63	open my $fh, "<", cf::localdir . "/runtime"	100	open my $fh, "<", "$LOCALDIR/runtime"
64	or die "unable to read runtime file: $!";	101	or die "unable to read runtime file: $!";
65	$RUNTIME = <$fh> + 0.;	102	$RUNTIME = <$fh> + 0.;
66	}	103	}
67		104
68	mkdir cf::localdir;	105	mkdir $_
69	mkdir cf::localdir . "/" . cf::playerdir;	106	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
70	mkdir cf::localdir . "/" . cf::tmpdir;
71	mkdir cf::localdir . "/" . cf::uniquedir;
72	mkdir $RANDOM_MAPS;
73		107
74	# a special map that is always available	108	our $EMERGENCY_POSITION;
75	our $LINK_MAP;
76		109
77	our $EMERGENCY_POSITION = $cf::CFG{emergency_position} || ["/world/world_105_115", 5, 37];	110	sub cf::map::normalise;
78		111
79	#############################################################################	112	#############################################################################
80		113
81	=head2 GLOBAL VARIABLES	114	=head2 GLOBAL VARIABLES
82		115
…		…
89	=item $cf::RUNTIME	122	=item $cf::RUNTIME
90		123
91	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
92	every server tick.	125	every server tick.
93		126
94	=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
95		130
96	The perl library directory, where extensions and cf-specific modules can	131	Various directories - "/etc", read-only install directory, perl-library
97	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.
98		135
99	=item $cf::NOW	136	=item $cf::NOW
100		137
101	The time of the last (current) server tick.	138	The time of the last (current) server tick.
102		139
…		…
106		143
107	=item %cf::CFG	144	=item %cf::CFG
108		145
109	Configuration for the server, loaded from C</etc/crossfire/config>, or	146	Configuration for the server, loaded from C</etc/crossfire/config>, or
110	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.
111		154
112	=back	155	=back
113		156
114	=cut	157	=cut
115		158
116	BEGIN {	159	BEGIN {
117	*CORE::GLOBAL::warn = sub {	160	*CORE::GLOBAL::warn = sub {
118	my $msg = join "", @_;	161	my $msg = join "", @_;
119	utf8::encode $msg;
120		162
121	$msg .= "\n"	163	$msg .= "\n"
122	unless $msg =~ /\n$/;	164	unless $msg =~ /\n$/;
123		165
		166	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		167
		168	utf8::encode $msg;
124	LOG llevError, "cfperl: $msg";	169	LOG llevError, $msg;
125	};	170	};
126	}	171	}
127		172
128	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	173	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
129	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	174	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
…		…
147		192
148	$Event::DIED = sub {	193	$Event::DIED = sub {
149	warn "error in event callback: @_";	194	warn "error in event callback: @_";
150	};	195	};
151		196
152	my %ext_pkg;
153	my @exts;
154	my @hook;
155
156	=head2 UTILITY FUNCTIONS	197	=head2 UTILITY FUNCTIONS
157		198
158	=over 4	199	=over 4
159		200
160	=cut	201	=item dumpval $ref
161		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
162	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
163		225
164	=item $ref = cf::from_json $json	226	=item $ref = cf::from_json $json
165		227
166	Converts a JSON string into the corresponding perl data structure.	228	Converts a JSON string into the corresponding perl data structure.
167		229
168	=cut
169
170	sub from_json($) {
171	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
172	JSON::Syck::Load $_[0]
173	}
174
175	=item $json = cf::to_json $ref	230	=item $json = cf::to_json $ref
176		231
177	Converts a perl data structure into its JSON representation.	232	Converts a perl data structure into its JSON representation.
178		233
179	=cut
180
181	sub to_json($) {
182	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
183	JSON::Syck::Dump $_[0]
184	}
185
186	=item my $guard = cf::guard { BLOCK }
187
188	Run the given callback when the guard object gets destroyed (useful for
189	coroutine cancellations).
190
191	You can call C<< ->cancel >> on the guard object to stop the block from
192	being executed.
193
194	=cut
195
196	sub guard(&) {
197	bless \(my $cb = $_[0]), cf::guard::;
198	}
199
200	sub cf::guard::cancel {
201	${$_[0]} = sub { };
202	}
203
204	sub cf::guard::DESTROY {
205	${$_[0]}->();
206	}
207
208	=item cf::lock_wait $string	234	=item cf::lock_wait $string
209		235
210	Wait until the given lock is available. See cf::lock_acquire.	236	Wait until the given lock is available. See cf::lock_acquire.
211		237
212	=item my $lock = cf::lock_acquire $string	238	=item my $lock = cf::lock_acquire $string
213		239
214	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
215	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,
216	for example when the coroutine gets canceled), the lock is automatically	242	for example when the coroutine gets canceled), the lock is automatically
217	returned.	243	returned.
218		244
219	Lock names should begin with a unique identifier (for example, find_map	245	Lock names should begin with a unique identifier (for example, cf::map::find
220	uses map_find and load_map 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.
221		251
222	=cut	252	=cut
223		253
224	our %LOCK;	254	our %LOCK;
225		255
…		…
239	# wait, to be sure we are not locked	269	# wait, to be sure we are not locked
240	lock_wait $key;	270	lock_wait $key;
241		271
242	$LOCK{$key} = [];	272	$LOCK{$key} = [];
243		273
244	cf::guard {	274	Coro::guard {
245	# wake up all waiters, to be on the safe side	275	# wake up all waiters, to be on the safe side
246	$_->ready for @{ delete $LOCK{$key} };	276	$_->ready for @{ delete $LOCK{$key} };
247	}	277	}
248	}	278	}
249		279
		280	sub lock_active($) {
		281	my ($key) = @_;
		282
		283	! ! $LOCK{$key}
		284	}
		285
		286	sub freeze_mainloop {
		287	return unless $TICK_WATCHER->is_active;
		288
		289	my $guard = Coro::guard {
		290	$TICK_WATCHER->start;
		291	};
		292	$TICK_WATCHER->stop;
		293	$guard
		294	}
		295
250	=item cf::async { BLOCK }	296	=item cf::async { BLOCK }
251		297
252	Like C<Coro::async>, but runs the given BLOCK in an eval and only logs the	298	Currently the same as Coro::async_pool, meaning you cannot use
253	error instead of exiting the server in case of a problem.	299	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		300	thing you are allowed to do is call C<prio> on it.
254		301
255	=cut	302	=cut
256		303
257	sub async(&) {	304	BEGIN { *async = \&Coro::async_pool }
258	my ($cb) = @_;
259
260	Coro::async {
261	eval { $cb->() };
262	warn $@ if $@;
263	}
264	}
265		305
266	=item cf::sync_job { BLOCK }	306	=item cf::sync_job { BLOCK }
267		307
268	The design of crossfire+ requires that the main coro ($Coro::main) is	308	The design of crossfire+ requires that the main coro ($Coro::main) is
269	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
…		…
283	# this is the main coro, too bad, we have to block	323	# this is the main coro, too bad, we have to block
284	# till the operation succeeds, freezing the server :/	324	# till the operation succeeds, freezing the server :/
285		325
286	# TODO: use suspend/resume instead	326	# TODO: use suspend/resume instead
287	# (but this is cancel-safe)	327	# (but this is cancel-safe)
288	local $FREEZE = 1;	328	my $freeze_guard = freeze_mainloop;
289		329
290	my $busy = 1;	330	my $busy = 1;
291	my @res;	331	my @res;
292		332
293	(Coro::async {	333	(async {
294	@res = eval { $job->() };	334	@res = eval { $job->() };
295	warn $@ if $@;	335	warn $@ if $@;
296	undef $busy;	336	undef $busy;
297	})->prio (Coro::PRIO_MAX);	337	})->prio (Coro::PRIO_MAX);
298		338
299	while ($busy) {	339	while ($busy) {
300	Coro::cede_notself;	340	Coro::cede or Event::one_event;
301	Event::one_event unless Coro::nready;
302	}	341	}
303		342
304	wantarray ? @res : $res[0]	343	wantarray ? @res : $res[0]
305	} else {	344	} else {
306	# we are in another coroutine, how wonderful, everything just works	345	# we are in another coroutine, how wonderful, everything just works
307		346
308	$job->()	347	$job->()
309	}	348	}
310	}	349	}
311		350
312	=item $coro = cf::coro { BLOCK }	351	=item $coro = cf::async_ext { BLOCK }
313		352
314	Creates and returns a new coro. This coro is automcatially being canceled	353	Like async, but this coro is automatically being canceled when the
315	when the extension calling this is being unloaded.	354	extension calling this is being unloaded.
316		355
317	=cut	356	=cut
318		357
319	sub coro(&) {	358	sub async_ext(&) {
320	my $cb = shift;	359	my $cb = shift;
321		360
322	my $coro = &cf::async ($cb);	361	my $coro = &Coro::async ($cb);
323		362
324	$coro->on_destroy (sub {	363	$coro->on_destroy (sub {
325	delete $EXT_CORO{$coro+0};	364	delete $EXT_CORO{$coro+0};
326	});	365	});
327	$EXT_CORO{$coro+0} = $coro;	366	$EXT_CORO{$coro+0} = $coro;
328		367
329	$coro	368	$coro
330	}	369	}
331		370
332	sub write_runtime {	371	sub write_runtime {
333	my $runtime = cf::localdir . "/runtime";	372	my $guard = cf::lock_acquire "write_runtime";
		373
		374	my $runtime = "$LOCALDIR/runtime";
334		375
335	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	376	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
336	or return;	377	or return;
337		378
		379	my $value = $cf::RUNTIME + 90 + 10;
338	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
339	(aio_write $fh, 0, (length $value), $value, 0) <= 0	383	(aio_write $fh, 0, (length $value), $value, 0) <= 0
340	and return;	384	and return;
341		385
		386	# always fsync - this file is important
342	aio_fsync $fh	387	aio_fsync $fh
343	and return;	388	and return;
344		389
345	close $fh	390	close $fh
346	or return;	391	or return;
…		…
349	and return;	394	and return;
350		395
351	1	396	1
352	}	397	}
353		398
		399	=item cf::datalog type => key => value, ...
		400
		401	Log a datalog packet of the given type with the given key-value pairs.
		402
		403	=cut
		404
		405	sub datalog($@) {
		406	my ($type, %kv) = @_;
		407	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
		408	}
		409
354	=back	410	=back
355		411
356	=cut	412	=cut
357
358	#############################################################################
359
360	package cf::path;
361
362	sub new {
363	my ($class, $path, $base) = @_;
364
365	$path = $path->as_string if ref $path;
366
367	my $self = bless { }, $class;
368
369	# {... are special paths that are not touched
370	# ?xxx/... are special absolute paths
371	# ?random/... random maps
372	# /! non-realised random map exit
373	# /... normal maps
374	# ~/... per-player maps without a specific player (DO NOT USE)
375	# ~user/... per-player map of a specific user
376
377	if ($path =~ /^{/) {
378	# fine as it is
379	} elsif ($path =~ s{^\?random/}{}) {
380	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
381	$self->{random} = cf::from_json $data;
382	} else {
383	if ($path =~ s{^~([^/]+)?}{}) {
384	$self->{user_rel} = 1;
385
386	if (defined $1) {
387	$self->{user} = $1;
388	} elsif ($base =~ m{^~([^/]+)/}) {
389	$self->{user} = $1;
390	} else {
391	warn "cannot resolve user-relative path without user <$path,$base>\n";
392	}
393	} elsif ($path =~ /^\//) {
394	# already absolute
395	} else {
396	$base =~ s{[^/]+/?$}{};
397	return $class->new ("$base/$path");
398	}
399
400	for ($path) {
401	redo if s{/\.?/}{/};
402	redo if s{/[^/]+/\.\./}{/};
403	}
404	}
405
406	$self->{path} = $path;
407
408	$self
409	}
410
411	# the name / primary key / in-game path
412	sub as_string {
413	my ($self) = @_;
414
415	$self->{user_rel} ? "~$self->{user}$self->{path}"
416	: $self->{random} ? "?random/$self->{path}"
417	: $self->{path}
418	}
419
420	# the displayed name, this is a one way mapping
421	sub visible_name {
422	my ($self) = @_;
423
424	# if (my $rmp = $self->{random}) {
425	# # todo: be more intelligent about this
426	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
427	# } else {
428	$self->as_string
429	# }
430	}
431
432	# escape the /'s in the path
433	sub _escaped_path {
434	# ∕ is U+2215
435	(my $path = $_[0]{path}) =~ s/\//∕/g;
436	$path
437	}
438
439	# the original (read-only) location
440	sub load_path {
441	my ($self) = @_;
442
443	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
444	}
445
446	# the temporary/swap location
447	sub save_path {
448	my ($self) = @_;
449
450	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
451	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
452	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
453	}
454
455	# the unique path, might be eq to save_path
456	sub uniq_path {
457	my ($self) = @_;
458
459	$self->{user_rel} || $self->{random}
460	? undef
461	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
462	}
463
464	# return random map parameters, or undef
465	sub random_map_params {
466	my ($self) = @_;
467
468	$self->{random}
469	}
470
471	# this is somewhat ugly, but style maps do need special treatment
472	sub is_style_map {
473	$_[0]{path} =~ m{^/styles/}
474	}
475
476	package cf;
477		413
478	#############################################################################	414	#############################################################################
479		415
480	=head2 ATTACHABLE OBJECTS	416	=head2 ATTACHABLE OBJECTS
481		417
…		…
607	our @CB_TYPE = (); # registry for type (cf-object class) based events	543	our @CB_TYPE = (); # registry for type (cf-object class) based events
608	our @CB_MAP = ();	544	our @CB_MAP = ();
609		545
610	my %attachment;	546	my %attachment;
611		547
		548	sub cf::attachable::thawer_merge {
		549	# simply override everything except _meta
		550	local $_[0]{_meta};
		551	%{$_[0]} = %{$_[1]};
		552	}
		553
612	sub _attach_cb($$$$) {	554	sub _attach_cb($$$$) {
613	my ($registry, $event, $prio, $cb) = @_;	555	my ($registry, $event, $prio, $cb) = @_;
614		556
615	use sort 'stable';	557	use sort 'stable';
616		558
…		…
787	# object support	729	# object support
788		730
789	sub reattach {	731	sub reattach {
790	# basically do the same as instantiate, without calling instantiate	732	# basically do the same as instantiate, without calling instantiate
791	my ($obj) = @_;	733	my ($obj) = @_;
		734
		735	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
792		736
793	my $registry = $obj->registry;	737	my $registry = $obj->registry;
794		738
795	@$registry = ();	739	@$registry = ();
796		740
…		…
843	$filename, length $$rdata, scalar @$objs;	787	$filename, length $$rdata, scalar @$objs;
844		788
845	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	789	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
846	chmod SAVE_MODE, $fh;	790	chmod SAVE_MODE, $fh;
847	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	791	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
848	aio_fsync $fh;	792	aio_fsync $fh if $cf::USE_FSYNC;
849	close $fh;	793	close $fh;
850		794
851	if (@$objs) {	795	if (@$objs) {
852	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) {
853	chmod SAVE_MODE, $fh;	797	chmod SAVE_MODE, $fh;
854	my $data = Storable::nfreeze { version => 1, objs => $objs };	798	my $data = Storable::nfreeze { version => 1, objs => $objs };
855	aio_write $fh, 0, (length $data), $data, 0;	799	aio_write $fh, 0, (length $data), $data, 0;
856	aio_fsync $fh;	800	aio_fsync $fh if $cf::USE_FSYNC;
857	close $fh;	801	close $fh;
858	aio_rename "$filename.pst~", "$filename.pst";	802	aio_rename "$filename.pst~", "$filename.pst";
859	}	803	}
860	} else {	804	} else {
861	aio_unlink "$filename.pst";	805	aio_unlink "$filename.pst";
…		…
928	=cut	872	=cut
929		873
930	sub register_extcmd {	874	sub register_extcmd {
931	my ($name, $cb) = @_;	875	my ($name, $cb) = @_;
932		876
933	my $caller = caller;
934	#warn "registering extcmd '$name' to '$caller'";
935
936	$EXTCMD{$name} = [$cb, $caller];	877	$EXTCMD{$name} = $cb;
937	}	878	}
938		879
939	cf::player->attach (	880	cf::player->attach (
940	on_command => sub {	881	on_command => sub {
941	my ($pl, $name, $params) = @_;	882	my ($pl, $name, $params) = @_;
…		…
954		895
955	my $msg = eval { from_json $buf };	896	my $msg = eval { from_json $buf };
956		897
957	if (ref $msg) {	898	if (ref $msg) {
958	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	899	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
959	if (my %reply = $cb->[0]->($pl, $msg)) {	900	if (my %reply = $cb->($pl, $msg)) {
960	$pl->ext_reply ($msg->{msgid}, %reply);	901	$pl->ext_reply ($msg->{msgid}, %reply);
961	}	902	}
962	}	903	}
963	} else {	904	} else {
964	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	905	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
966		907
967	cf::override;	908	cf::override;
968	},	909	},
969	);	910	);
970		911
971	sub register {
972	my ($base, $pkg) = @_;
973
974	#TODO
975	}
976
977	sub load_extension {	912	sub load_extension {
978	my ($path) = @_;	913	my ($path) = @_;
979		914
980	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	915	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
981	my $base = $1;	916	my $base = $1;
982	my $pkg = $1;	917	my $pkg = $1;
983	$pkg =~ s/[^[:word:]]/_/g;	918	$pkg =~ s/[^[:word:]]/_/g;
984	$pkg = "ext::$pkg";	919	$pkg = "ext::$pkg";
985		920
986	warn "loading '$path' into '$pkg'\n";	921	warn "... loading '$path' into '$pkg'\n";
987		922
988	open my $fh, "<:utf8", $path	923	open my $fh, "<:utf8", $path
989	or die "$path: $!";	924	or die "$path: $!";
990		925
991	my $source =	926	my $source =
992	"package $pkg; use strict; use utf8;\n"	927	"package $pkg; use strict; use utf8;\n"
993	. "#line 1 \"$path\"\n{\n"	928	. "#line 1 \"$path\"\n{\n"
994	. (do { local $/; <$fh> })	929	. (do { local $/; <$fh> })
995	. "\n};\n1";	930	. "\n};\n1";
996		931
997	eval $source	932	unless (eval $source) {
998	or die $@ ? "$path: $@\n"	933	my $msg = $@ ? "$path: $@\n"
999	: "extension disabled.\n";	934	: "extension disabled.\n";
1000		935	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
1001	push @exts, $pkg;	936	warn $@;
1002	$ext_pkg{$base} = $pkg;	937	warn "mandatory extension failed to load, exiting.\n";
1003		938	exit 1;
1004	# no strict 'refs';	939	}
1005	# @{"$pkg\::ISA"} = ext::;	940	die $@;
1006
1007	register $base, $pkg;
1008	}
1009
1010	sub unload_extension {
1011	my ($pkg) = @_;
1012
1013	warn "removing extension $pkg\n";
1014
1015	# remove hooks
1016	#TODO
1017	# for my $idx (0 .. $#PLUGIN_EVENT) {
1018	# delete $hook[$idx]{$pkg};
1019	# }	941	}
1020		942
1021	# remove commands	943	push @EXTS, $pkg;
1022	for my $name (keys %COMMAND) {
1023	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1024
1025	if (@cb) {
1026	$COMMAND{$name} = \@cb;
1027	} else {
1028	delete $COMMAND{$name};
1029	}
1030	}
1031
1032	# remove extcmds
1033	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1034	delete $EXTCMD{$name};
1035	}
1036
1037	if (my $cb = $pkg->can ("unload")) {
1038	eval {
1039	$cb->($pkg);
1040	1
1041	} or warn "$pkg unloaded, but with errors: $@";
1042	}
1043
1044	Symbol::delete_package $pkg;
1045	}	944	}
1046		945
1047	sub load_extensions {	946	sub load_extensions {
1048	for my $ext (<$LIBDIR/*.ext>) {	947	for my $ext (<$LIBDIR/*.ext>) {
1049	next unless -r $ext;	948	next unless -r $ext;
…		…
1053	} or warn "$ext not loaded: $@";	952	} or warn "$ext not loaded: $@";
1054	}	953	}
1055	}	954	}
1056		955
1057	#############################################################################	956	#############################################################################
1058	# load/save/clean perl data associated with a map
1059
1060	*cf::mapsupport::on_clean = sub {
1061	my ($map) = @_;
1062
1063	my $path = $map->tmpname;
1064	defined $path or return;
1065
1066	unlink "$path.pst";
1067	};
1068
1069	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1070
1071	#############################################################################
1072	# load/save perl data associated with player->ob objects
1073
1074	sub all_objects(@) {
1075	@_, map all_objects ($_->inv), @_
1076	}
1077
1078	# TODO: compatibility cruft, remove when no longer needed
1079	cf::player->attach (
1080	on_load => sub {
1081	my ($pl, $path) = @_;
1082
1083	for my $o (all_objects $pl->ob) {
1084	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1085	$o->set_ob_key_value ("_perl_data");
1086
1087	%$o = %{ Storable::thaw pack "H*", $value };
1088	}
1089	}
1090	},
1091	);
1092
1093	#############################################################################
1094		957
1095	=head2 CORE EXTENSIONS	958	=head2 CORE EXTENSIONS
1096		959
1097	Functions and methods that extend core crossfire objects.	960	Functions and methods that extend core crossfire objects.
1098		961
		962	=cut
		963
		964	package cf::player;
		965
		966	use Coro::AIO;
		967
1099	=head3 cf::player	968	=head3 cf::player
1100		969
1101	=over 4	970	=over 4
1102		971
1103	=item cf::player::exists $login	972	=item cf::player::find $login
1104		973
1105	Returns true when the given account exists.	974	Returns the given player object, loading it if necessary (might block).
1106		975
1107	=cut	976	=cut
1108		977
1109	sub cf::player::exists($) {	978	sub playerdir($) {
1110	cf::player::find $_[0]	979	"$PLAYERDIR/"
1111	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	980	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1112	}	981	}
1113		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
1114	=item $player->ext_reply ($msgid, $msgtype, %msg)	1154	=item $player->ext_reply ($msgid, %msg)
1115		1155
1116	Sends an ext reply to the player.	1156	Sends an ext reply to the player.
1117		1157
1118	=cut	1158	=cut
1119		1159
1120	sub cf::player::ext_reply($$$%) {	1160	sub ext_reply($$%) {
1121	my ($self, $id, %msg) = @_;	1161	my ($self, $id, %msg) = @_;
1122		1162
1123	$msg{msgid} = $id;	1163	$msg{msgid} = $id;
1124		1164
1125	$self->send ("ext " . to_json \%msg);	1165	$self->send ("ext " . cf::to_json \%msg);
		1166	}
		1167
		1168	=item $player->ext_event ($type, %msg)
		1169
		1170	Sends an ext event to the client.
		1171
		1172	=cut
		1173
		1174	sub ext_event($$%) {
		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
1126	}	1207	}
1127		1208
1128	=back	1209	=back
1129
1130		1210
1131	=head3 cf::map	1211	=head3 cf::map
1132		1212
1133	=over 4	1213	=over 4
1134		1214
…		…
1137	package cf::map;	1217	package cf::map;
1138		1218
1139	use Fcntl;	1219	use Fcntl;
1140	use Coro::AIO;	1220	use Coro::AIO;
1141		1221
		1222	use overload
		1223	'""' => \&as_string,
		1224	fallback => 1;
		1225
1142	our $MAX_RESET = 7200;	1226	our $MAX_RESET = 3600;
1143	our $DEFAULT_RESET = 3600;	1227	our $DEFAULT_RESET = 3000;
1144		1228
1145	sub generate_random_map {	1229	sub generate_random_map {
1146	my ($path, $rmp) = @_;	1230	my ($self, $rmp) = @_;
1147
1148	# mit "rum" bekleckern, nicht	1231	# mit "rum" bekleckern, nicht
1149	cf::map::_create_random_map	1232	$self->_create_random_map (
1150	$path,
1151	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1233	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1152	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1234	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1153	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1235	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1154	$rmp->{exit_on_final_map},	1236	$rmp->{exit_on_final_map},
1155	$rmp->{xsize}, $rmp->{ysize},	1237	$rmp->{xsize}, $rmp->{ysize},
1156	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1238	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1157	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1239	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1158	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1240	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1159	$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},
1160	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1242	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1161	(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"
1162	}	1374	}
1163		1375
1164	# and all this just because we cannot iterate over	1376	# and all this just because we cannot iterate over
1165	# all maps in C++...	1377	# all maps in C++...
1166	sub change_all_map_light {	1378	sub change_all_map_light {
…		…
1168		1380
1169	$_->change_map_light ($change)	1381	$_->change_map_light ($change)
1170	for grep $_->outdoor, values %cf::MAP;	1382	for grep $_->outdoor, values %cf::MAP;
1171	}	1383	}
1172		1384
		1385	sub unlink_save {
		1386	my ($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
1173	sub try_load_header($) {	1393	sub load_header_from($) {
1174	my ($path) = @_;	1394	my ($self, $path) = @_;
1175		1395
1176	utf8::encode $path;	1396	utf8::encode $path;
1177	aio_open $path, O_RDONLY, 0	1397	#aio_open $path, O_RDONLY, 0
		1398	# or return;
		1399
		1400	$self->_load_header ($path)
1178	or return;	1401	or return;
1179		1402
1180	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
1181	or return;	1446	or return;
		1447	$self->prepare_orig;
		1448	}
1182		1449
1183	$map->load_header ($path)	1450	$self->default_region (cf::region::find_by_path $self->{path})
1184	or return;	1451	unless $self->default_region;
1185		1452
1186	$map->{load_path} = $path;	1453	1
1187
1188	$map
1189	}	1454	}
1190		1455
1191	sub find_map;	1456	sub find;
1192	sub find_map {	1457	sub find {
1193	my ($path, $origin) = @_;	1458	my ($path, $origin) = @_;
1194		1459
1195	#warn "find_map<$path,$origin>\n";#d#
1196
1197	$path = new cf::path $path, $origin && $origin->path;	1460	$path = normalise $path, $origin && $origin->path;
1198	my $key = $path->as_string;
1199		1461
1200	cf::lock_wait "map_find:$key";	1462	cf::lock_wait "map_find:$path";
1201		1463
1202	$cf::MAP{$key} || do {	1464	$cf::MAP{$path} || do {
1203	my $guard = cf::lock_acquire "map_find:$key";	1465	my $guard = cf::lock_acquire "map_find:$path";
1204		1466	my $map = new_from_path cf::map $path
1205	# do it the slow way
1206	my $map = try_load_header $path->save_path;
1207
1208	if ($map) {
1209	# safety
1210	$map->{instantiate_time} = $cf::RUNTIME
1211	if $map->{instantiate_time} > $cf::RUNTIME;
1212	} else {
1213	if (my $rmp = $path->random_map_params) {
1214	$map = generate_random_map $key, $rmp;
1215	} else {
1216	$map = try_load_header $path->load_path;
1217	}
1218
1219	$map or return;	1467	or return;
1220		1468
1221	$map->{load_original} = 1;
1222	$map->{instantiate_time} = $cf::RUNTIME;
1223	$map->instantiate;
1224
1225	# per-player maps become, after loading, normal maps
1226	$map->per_player (0) if $path->{user_rel};
1227	}
1228
1229	$map->path ($key);
1230	$map->{path} = $path;
1231	$map->{last_save} = $cf::RUNTIME;	1469	$map->{last_save} = $cf::RUNTIME;
1232	$map->last_access ($cf::RUNTIME);
1233		1470
1234	if ($map->should_reset) {	1471	$map->load_header
		1472	or return;
		1473
		1474	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)
		1475	# doing this can freeze the server in a sync job, obviously
		1476	#$cf::WAIT_FOR_TICK->wait;
1235	$map->reset;	1477	$map->reset;
1236	undef $guard;	1478	undef $guard;
1237	$map = find_map $path	1479	return find $path;
1238	or return;
1239	}	1480	}
1240		1481
1241	$cf::MAP{$key} = $map	1482	$cf::MAP{$path} = $map
1242	}	1483	}
1243	}	1484	}
		1485
		1486	sub pre_load { }
		1487	sub post_load { }
1244		1488
1245	sub load {	1489	sub load {
1246	my ($self) = @_;	1490	my ($self) = @_;
1247		1491
		1492	local $self->{deny_reset} = 1; # loading can take a long time
		1493
1248	my $path = $self->{path};	1494	my $path = $self->{path};
		1495
		1496	{
1249	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1497	my $guard = cf::lock_acquire "map_load:$path";
1250		1498
1251	return if $self->in_memory != cf::MAP_SWAPPED;	1499	return if $self->in_memory != cf::MAP_SWAPPED;
1252		1500
1253	$self->in_memory (cf::MAP_LOADING);	1501	$self->in_memory (cf::MAP_LOADING);
1254		1502
1255	$self->alloc;	1503	$self->alloc;
		1504
		1505	$self->pre_load;
		1506	Coro::cede;
		1507
1256	$self->load_objects ($self->{load_path}, 1)	1508	$self->_load_objects ($self->{load_path}, 1)
1257	or return;	1509	or return;
1258		1510
1259	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1511	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1260	if delete $self->{load_original};	1512	if delete $self->{load_original};
1261		1513
1262	if (my $uniq = $path->uniq_path) {	1514	if (my $uniq = $self->uniq_path) {
1263	utf8::encode $uniq;	1515	utf8::encode $uniq;
1264	if (aio_open $uniq, O_RDONLY, 0) {	1516	if (aio_open $uniq, O_RDONLY, 0) {
1265	$self->clear_unique_items;	1517	$self->clear_unique_items;
1266	$self->load_objects ($uniq, 0);	1518	$self->_load_objects ($uniq, 0);
1267	}	1519	}
1268	}	1520	}
1269		1521
		1522	Coro::cede;
1270	# now do the right thing for maps	1523	# now do the right thing for maps
1271	$self->link_multipart_objects;	1524	$self->link_multipart_objects;
1272
1273	if ($self->{path}->is_style_map) {
1274	$self->{deny_save} = 1;
1275	$self->{deny_reset} = 1;
1276	} else {
1277	$self->fix_auto_apply;
1278	$self->decay_objects;
1279	$self->update_buttons;
1280	$self->set_darkness_map;
1281	$self->difficulty ($self->estimate_difficulty)	1525	$self->difficulty ($self->estimate_difficulty)
1282	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;
1283	$self->activate;	1536	$self->activate;
1284	}	1537	}
1285		1538
1286	$self->in_memory (cf::MAP_IN_MEMORY);	1539	$self->in_memory (cf::MAP_IN_MEMORY);
1287	}	1540	}
1288		1541
1289	sub load_map_sync {	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	$neigh->load;
		1575	}
		1576	}
		1577
		1578	sub find_sync {
1290	my ($path, $origin) = @_;	1579	my ($path, $origin) = @_;
1291		1580
1292	#warn "load_map_sync<$path, $origin>\n";#d#	1581	cf::sync_job { find $path, $origin }
		1582	}
1293		1583
1294	cf::sync_job {	1584	sub do_load_sync {
1295	my $map = cf::map::find_map $path, $origin	1585	my ($map) = @_;
1296	or return;	1586
		1587	cf::sync_job { $map->load };
		1588	}
		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;
1297	$map->load;	1608	$map->load;
1298	$map	1609
		1610	delete $MAP_PREFETCH{$path};
		1611	}
		1612	}
		1613	undef $MAP_PREFETCHER;
1299	}	1614	};
		1615	$MAP_PREFETCHER->prio (6);
		1616
		1617	()
1300	}	1618	}
1301		1619
1302	sub save {	1620	sub save {
1303	my ($self) = @_;	1621	my ($self) = @_;
1304		1622
		1623	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1624
1305	$self->{last_save} = $cf::RUNTIME;	1625	$self->{last_save} = $cf::RUNTIME;
1306		1626
1307	return unless $self->dirty;	1627	return unless $self->dirty;
1308		1628
1309	my $save = $self->{path}->save_path; utf8::encode $save;	1629	my $save = $self->save_path; utf8::encode $save;
1310	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	1630	my $uniq = $self->uniq_path; utf8::encode $uniq;
1311		1631
1312	$self->{load_path} = $save;	1632	$self->{load_path} = $save;
1313		1633
1314	return if $self->{deny_save};	1634	return if $self->{deny_save};
1315		1635
		1636	local $self->{last_access} = $self->last_access;#d#
		1637
		1638	cf::async {
		1639	$_->contr->save for $self->players;
		1640	};
		1641
1316	if ($uniq) {	1642	if ($uniq) {
1317	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1643	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1318	$self->save_objects ($uniq, cf::IO_UNIQUES);	1644	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1319	} else {	1645	} else {
1320	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1646	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1321	}	1647	}
1322	}	1648	}
1323		1649
1324	sub swap_out {	1650	sub swap_out {
1325	my ($self) = @_;	1651	my ($self) = @_;
1326		1652
1327	# save first because save cedes	1653	# save first because save cedes
1328	$self->save;	1654	$self->save;
		1655
		1656	my $lock = cf::lock_acquire "map_data:" . $self->path;
1329		1657
1330	return if $self->players;	1658	return if $self->players;
1331	return if $self->in_memory != cf::MAP_IN_MEMORY;	1659	return if $self->in_memory != cf::MAP_IN_MEMORY;
1332	return if $self->{deny_save};	1660	return if $self->{deny_save};
1333		1661
…		…
1337		1665
1338	sub reset_at {	1666	sub reset_at {
1339	my ($self) = @_;	1667	my ($self) = @_;
1340		1668
1341	# TODO: safety, remove and allow resettable per-player maps	1669	# TODO: safety, remove and allow resettable per-player maps
1342	return 1e99 if $self->{path}{user_rel};	1670	return 1e99 if $self->isa ("ext::map_per_player");#d#
1343	return 1e99 if $self->{deny_reset};	1671	return 1e99 if $self->{deny_reset};
1344		1672
1345	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1673	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1346	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1674	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1347		1675
…		…
1352	my ($self) = @_;	1680	my ($self) = @_;
1353		1681
1354	$self->reset_at <= $cf::RUNTIME	1682	$self->reset_at <= $cf::RUNTIME
1355	}	1683	}
1356		1684
1357	sub unlink_save {
1358	my ($self) = @_;
1359
1360	utf8::encode (my $save = $self->{path}->save_path);
1361	aioreq_pri 3; IO::AIO::aio_unlink $save;
1362	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1363	}
1364
1365	sub rename {
1366	my ($self, $new_path) = @_;
1367
1368	$self->unlink_save;
1369
1370	delete $cf::MAP{$self->path};
1371	$self->{path} = new cf::path $new_path;
1372	$self->path ($self->{path}->as_string);
1373	$cf::MAP{$self->path} = $self;
1374
1375	$self->save;
1376	}
1377
1378	sub reset {	1685	sub reset {
1379	my ($self) = @_;	1686	my ($self) = @_;
1380		1687
		1688	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1689
1381	return if $self->players;	1690	return if $self->players;
1382	return if $self->{path}{user_rel};#d#	1691	return if $self->isa ("ext::map_per_player");#d#
1383		1692
1384	warn "resetting map ", $self->path;#d#	1693	warn "resetting map ", $self->path;#d#
1385		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
1386	delete $cf::MAP{$self->path};	1705	delete $cf::MAP{$self->path};
		1706
		1707	$self->clear;
1387		1708
1388	$_->clear_links_to ($self) for values %cf::MAP;	1709	$_->clear_links_to ($self) for values %cf::MAP;
1389		1710
1390	$self->unlink_save;	1711	$self->unlink_save;
1391	$self->destroy;	1712	$self->destroy;
…		…
1394	my $nuke_counter = "aaaa";	1715	my $nuke_counter = "aaaa";
1395		1716
1396	sub nuke {	1717	sub nuke {
1397	my ($self) = @_;	1718	my ($self) = @_;
1398		1719
		1720	delete $cf::MAP{$self->path};
		1721
		1722	$self->unlink_save;
		1723
		1724	bless $self, "cf::map";
		1725	delete $self->{deny_reset};
1399	$self->{deny_save} = 1;	1726	$self->{deny_save} = 1;
1400	$self->reset_timeout (1);	1727	$self->reset_timeout (1);
1401	$self->rename ("{nuke}/" . ($nuke_counter++));	1728	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1729
		1730	$cf::MAP{$self->path} = $self;
		1731
1402	$self->reset; # polite request, might not happen	1732	$self->reset; # polite request, might not happen
1403	}	1733	}
1404		1734
1405	sub customise_for {	1735	=item cf::map::unique_maps
1406	my ($map, $ob) = @_;
1407		1736
1408	if ($map->per_player) {	1737	Returns an arrayref of paths of all shared maps that have
1409	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	1738	instantiated unique items. May block.
1410	}
1411		1739
1412	$map	1740	=cut
1413	}
1414		1741
1415	sub emergency_save {	1742	sub unique_maps() {
1416	local $cf::FREEZE = 1;	1743	my $files = aio_readdir $UNIQUEDIR
		1744	or return;
1417		1745
1418	warn "enter emergency map save\n";	1746	my @paths;
1419		1747
1420	cf::sync_job {	1748	for (@$files) {
1421	warn "begin emergency map save\n";	1749	utf8::decode $_;
1422	$_->save for values %cf::MAP;	1750	next if /\.pst$/;
		1751	next unless /^$PATH_SEP/o;
		1752
		1753	push @paths, cf::map::normalise $_;
1423	};	1754	}
1424		1755
1425	warn "end emergency map save\n";	1756	\@paths
1426	}	1757	}
1427		1758
1428	package cf;	1759	package cf;
1429		1760
1430	=back	1761	=back
1431		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
1432		1789
1433	=head3 cf::object::player	1790	=head3 cf::object::player
1434		1791
1435	=over 4	1792	=over 4
1436		1793
…		…
1476		1833
1477	=item $player_object->enter_link	1834	=item $player_object->enter_link
1478		1835
1479	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}>).
1480		1837
1481	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
1482	I<MUST> call C<leave_link> as soon as possible, though.	1839	I<MUST> call C<leave_link> as soon as possible, though.
1483		1840
		1841	Will never block.
		1842
1484	=item $player_object->leave_link ($map, $x, $y)	1843	=item $player_object->leave_link ($map, $x, $y)
1485		1844
1486	Moves the player out of the specila link map onto the given map. If the	1845	Moves the player out of the special C<{link}> map onto the specified
1487	map is not valid (or omitted), the player will be moved back to the	1846	map. If the map is not valid (or omitted), the player will be moved back
1488	location he/she was before the call to C<enter_link>, or, if that fails,	1847	to the location he/she was before the call to C<enter_link>, or, if that
1489	to the emergency map position.	1848	fails, to the emergency map position.
1490		1849
1491	Might block.	1850	Might block.
1492		1851
1493	=cut	1852	=cut
		1853
		1854	sub link_map {
		1855	unless ($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	$LINK_MAP
		1862	}
1494		1863
1495	sub cf::object::player::enter_link {	1864	sub cf::object::player::enter_link {
1496	my ($self) = @_;	1865	my ($self) = @_;
1497		1866
1498	$self->deactivate_recursive;	1867	return if UNIVERSAL::isa $self->map, "ext::map_link";
1499
1500	return if $self->map == $LINK_MAP;
1501		1868
1502	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	1869	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1503	if $self->map;	1870	if $self->map;
1504		1871
1505	$self->enter_map ($LINK_MAP, 20, 20);	1872	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1506	}	1873	}
1507		1874
1508	sub cf::object::player::leave_link {	1875	sub cf::object::player::leave_link {
1509	my ($self, $map, $x, $y) = @_;	1876	my ($self, $map, $x, $y) = @_;
1510		1877
1511	my $link_pos = delete $self->{_link_pos};	1878	my $link_pos = delete $self->{_link_pos};
1512		1879
1513	unless ($map) {	1880	unless ($map) {
1514	# restore original map position	1881	# restore original map position
1515	($map, $x, $y) = @{ $link_pos || [] };	1882	($map, $x, $y) = @{ $link_pos || [] };
1516	$map = cf::map::find_map $map;	1883	$map = cf::map::find $map;
1517		1884
1518	unless ($map) {	1885	unless ($map) {
1519	($map, $x, $y) = @$EMERGENCY_POSITION;	1886	($map, $x, $y) = @$EMERGENCY_POSITION;
1520	$map = cf::map::find_map $map	1887	$map = cf::map::find $map
1521	or die "FATAL: cannot load emergency map\n";	1888	or die "FATAL: cannot load emergency map\n";
1522	}	1889	}
1523	}	1890	}
1524		1891
1525	($x, $y) = (-1, -1)	1892	($x, $y) = (-1, -1)
…		…
1528	# use -1 or undef as default coordinates, not 0, 0	1895	# use -1 or undef as default coordinates, not 0, 0
1529	($x, $y) = ($map->enter_x, $map->enter_y)	1896	($x, $y) = ($map->enter_x, $map->enter_y)
1530	if $x <=0 && $y <= 0;	1897	if $x <=0 && $y <= 0;
1531		1898
1532	$map->load;	1899	$map->load;
		1900	$map->load_diag;
1533		1901
		1902	return unless $self->contr->active;
1534	$self->activate_recursive;	1903	$self->activate_recursive;
		1904
		1905	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1535	$self->enter_map ($map, $x, $y);	1906	$self->enter_map ($map, $x, $y);
1536	}	1907	}
1537		1908
1538	cf::player->attach (	1909	cf::player->attach (
1539	on_logout => sub {	1910	on_logout => sub {
…		…
1551		1922
1552	# try to abort aborted map switching on player login :)	1923	# try to abort aborted map switching on player login :)
1553	# should happen only on crashes	1924	# should happen only on crashes
1554	if ($pl->ob->{_link_pos}) {	1925	if ($pl->ob->{_link_pos}) {
1555	$pl->ob->enter_link;	1926	$pl->ob->enter_link;
1556	cf::async {	1927	(async {
		1928	$pl->ob->reply (undef,
		1929	"There was an internal problem at your last logout, "
		1930	. "the server will try to bring you to your intended destination in a second.",
		1931	cf::NDI_RED);
1557	# we need this sleep as the login has a concurrent enter_exit running	1932	# we need this sleep as the login has a concurrent enter_exit running
1558	# and this sleep increases chances of the player not ending up in scorn	1933	# and this sleep increases chances of the player not ending up in scorn
1559	Coro::Timer::sleep 1;	1934	Coro::Timer::sleep 1;
1560	$pl->ob->leave_link;	1935	$pl->ob->leave_link;
1561	};	1936	})->prio (2);
1562	}	1937	}
1563	},	1938	},
1564	);	1939	);
1565		1940
1566	=item $player_object->goto_map ($path, $x, $y)	1941	=item $player_object->goto ($path, $x, $y)
1567		1942
1568	=cut	1943	=cut
1569		1944
1570	sub cf::object::player::goto_map {	1945	sub cf::object::player::goto {
1571	my ($self, $path, $x, $y) = @_;	1946	my ($self, $path, $x, $y) = @_;
1572		1947
1573	$self->enter_link;	1948	$self->enter_link;
1574		1949
1575	(cf::async {	1950	(async {
1576	$path = new cf::path $path;	1951	my $map = eval {
1577
1578	my $map = cf::map::find_map $path->as_string;	1952	my $map = cf::map::find $path;
1579	$map = $map->customise_for ($self) if $map;	1953	$map = $map->customise_for ($self) if $map;
1580		1954	$map
1581	# warn "entering ", $map->path, " at ($x, $y)\n"	1955	} or
1582	# if $map;
1583
1584	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	1956	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1585		1957
1586	$self->leave_link ($map, $x, $y);	1958	$self->leave_link ($map, $x, $y);
1587	})->prio (1);	1959	})->prio (1);
1588	}	1960	}
1589		1961
…		…
1593		1965
1594	sub parse_random_map_params {	1966	sub parse_random_map_params {
1595	my ($spec) = @_;	1967	my ($spec) = @_;
1596		1968
1597	my $rmp = { # defaults	1969	my $rmp = { # defaults
1598	xsize => 10,	1970	xsize => (cf::rndm 15, 40),
1599	ysize => 10,	1971	ysize => (cf::rndm 15, 40),
		1972	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		1973	#layout => string,
1600	};	1974	};
1601		1975
1602	for (split /\n/, $spec) {	1976	for (split /\n/, $spec) {
1603	my ($k, $v) = split /\s+/, $_, 2;	1977	my ($k, $v) = split /\s+/, $_, 2;
1604		1978
…		…
1608	$rmp	1982	$rmp
1609	}	1983	}
1610		1984
1611	sub prepare_random_map {	1985	sub prepare_random_map {
1612	my ($exit) = @_;	1986	my ($exit) = @_;
		1987
		1988	my $guard = cf::lock_acquire "exit_prepare:$exit";
1613		1989
1614	# all this does is basically replace the /! path by	1990	# all this does is basically replace the /! path by
1615	# a new random map path (?random/...) with a seed	1991	# a new random map path (?random/...) with a seed
1616	# that depends on the exit object	1992	# that depends on the exit object
1617		1993
1618	my $rmp = parse_random_map_params $exit->msg;	1994	my $rmp = parse_random_map_params $exit->msg;
1619		1995
1620	if ($exit->map) {	1996	if ($exit->map) {
1621	$rmp->{region} = $exit->map->region_name;	1997	$rmp->{region} = $exit->region->name;
1622	$rmp->{origin_map} = $exit->map->path;	1998	$rmp->{origin_map} = $exit->map->path;
1623	$rmp->{origin_x} = $exit->x;	1999	$rmp->{origin_x} = $exit->x;
1624	$rmp->{origin_y} = $exit->y;	2000	$rmp->{origin_y} = $exit->y;
1625	}	2001	}
1626		2002
1627	$rmp->{random_seed} ||= $exit->random_seed;	2003	$rmp->{random_seed} ||= $exit->random_seed;
1628		2004
1629	my $data = cf::to_json $rmp;	2005	my $data = cf::to_json $rmp;
1630	my $md5 = Digest::MD5::md5_hex $data;	2006	my $md5 = Digest::MD5::md5_hex $data;
		2007	my $meta = "$RANDOMDIR/$md5.meta";
1631		2008
1632	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2009	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1633	aio_write $fh, 0, (length $data), $data, 0;	2010	aio_write $fh, 0, (length $data), $data, 0;
		2011	undef $fh;
		2012	aio_rename "$meta~", $meta;
1634		2013
1635	$exit->slaying ("?random/$md5");	2014	$exit->slaying ("?random/$md5");
1636	$exit->msg (undef);	2015	$exit->msg (undef);
1637	}	2016	}
1638	}	2017	}
…		…
1640	sub cf::object::player::enter_exit {	2019	sub cf::object::player::enter_exit {
1641	my ($self, $exit) = @_;	2020	my ($self, $exit) = @_;
1642		2021
1643	return unless $self->type == cf::PLAYER;	2022	return unless $self->type == cf::PLAYER;
1644		2023
		2024	if ($exit->slaying eq "/!") {
		2025	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2026	# the problem is that $exit might not survive long enough
		2027	# so it needs to be done right now, right here
		2028	cf::sync_job { prepare_random_map $exit };
		2029	}
		2030
		2031	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2032	my $hp = $exit->stats->hp;
		2033	my $sp = $exit->stats->sp;
		2034
1645	$self->enter_link;	2035	$self->enter_link;
1646		2036
1647	(cf::async {	2037	(async {
		2038	$self->deactivate_recursive; # just to be sure
1648	unless (eval {	2039	unless (eval {
1649	prepare_random_map $exit	2040	$self->goto ($slaying, $hp, $sp);
1650	if $exit->slaying eq "/!";
1651
1652	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1653	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
1654		2041
1655	1;	2042	1;
1656	}) {	2043	}) {
1657	$self->message ("Something went wrong deep within the crossfire server. "	2044	$self->message ("Something went wrong deep within the crossfire server. "
1658	. "I'll try to bring you back to the map you were before. "	2045	. "I'll try to bring you back to the map you were before. "
1659	. "Please report this to the dungeon master",	2046	. "Please report this to the dungeon master!",
1660	cf::NDI_UNIQUE | cf::NDI_RED);	2047	cf::NDI_UNIQUE | cf::NDI_RED);
1661		2048
1662	warn "ERROR in enter_exit: $@";	2049	warn "ERROR in enter_exit: $@";
1663	$self->leave_link;	2050	$self->leave_link;
1664	}	2051	}
1665	})->prio (1);	2052	})->prio (1);
…		…
1678		2065
1679	sub cf::client::send_drawinfo {	2066	sub cf::client::send_drawinfo {
1680	my ($self, $text, $flags) = @_;	2067	my ($self, $text, $flags) = @_;
1681		2068
1682	utf8::encode $text;	2069	utf8::encode $text;
1683	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2070	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1684	}	2071	}
1685		2072
		2073	=item $client->ext_event ($type, %msg)
		2074
		2075	Sends an exti event to the client.
		2076
		2077	=cut
		2078
		2079	sub cf::client::ext_event($$%) {
		2080	my ($self, $type, %msg) = @_;
		2081
		2082	$msg{msgtype} = "event_$type";
		2083	$self->send_packet ("ext " . cf::to_json \%msg);
		2084	}
1686		2085
1687	=item $success = $client->query ($flags, "text", \&cb)	2086	=item $success = $client->query ($flags, "text", \&cb)
1688		2087
1689	Queues a query to the client, calling the given callback with	2088	Queues a query to the client, calling the given callback with
1690	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2089	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
…		…
1719	# get handled first	2118	# get handled first
1720	my $queue = delete $ns->{query_queue}	2119	my $queue = delete $ns->{query_queue}
1721	or return; # be conservative, not sure how that can happen, but we saw a crash here	2120	or return; # be conservative, not sure how that can happen, but we saw a crash here
1722		2121
1723	(shift @$queue)->[1]->($msg);	2122	(shift @$queue)->[1]->($msg);
		2123	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1724		2124
1725	push @{ $ns->{query_queue} }, @$queue;	2125	push @{ $ns->{query_queue} }, @$queue;
1726		2126
1727	if (@{ $ns->{query_queue} } == @$queue) {	2127	if (@{ $ns->{query_queue} } == @$queue) {
1728	if (@$queue) {	2128	if (@$queue) {
…		…
1732	}	2132	}
1733	}	2133	}
1734	},	2134	},
1735	);	2135	);
1736		2136
1737	=item $client->coro (\&cb)	2137	=item $client->async (\&cb)
1738		2138
1739	Create a new coroutine, running the specified callback. The coroutine will	2139	Create a new coroutine, running the specified callback. The coroutine will
1740	be automatically cancelled when the client gets destroyed (e.g. on logout,	2140	be automatically cancelled when the client gets destroyed (e.g. on logout,
1741	or loss of connection).	2141	or loss of connection).
1742		2142
1743	=cut	2143	=cut
1744		2144
1745	sub cf::client::coro {	2145	sub cf::client::async {
1746	my ($self, $cb) = @_;	2146	my ($self, $cb) = @_;
1747		2147
1748	my $coro = &cf::async ($cb);	2148	my $coro = &Coro::async ($cb);
1749		2149
1750	$coro->on_destroy (sub {	2150	$coro->on_destroy (sub {
1751	delete $self->{_coro}{$coro+0};	2151	delete $self->{_coro}{$coro+0};
1752	});	2152	});
1753		2153
…		…
1786		2186
1787	# here we export the classes and methods available to script code	2187	# here we export the classes and methods available to script code
1788		2188
1789	=pod	2189	=pod
1790		2190
1791	The following fucntions and emthods are available within a safe environment:	2191	The following functions and methods are available within a safe environment:
1792		2192
1793	cf::object contr pay_amount pay_player map	2193	cf::object contr pay_amount pay_player map
1794	cf::object::player player	2194	cf::object::player player
1795	cf::player peaceful	2195	cf::player peaceful
1796	cf::map trigger	2196	cf::map trigger
…		…
1881	#############################################################################	2281	#############################################################################
1882		2282
1883	=head2 EXTENSION DATABASE SUPPORT	2283	=head2 EXTENSION DATABASE SUPPORT
1884		2284
1885	Crossfire maintains a very simple database for extension use. It can	2285	Crossfire maintains a very simple database for extension use. It can
1886	currently store anything that can be serialised using Storable, which	2286	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
1887	excludes objects.	2287	convert to/from binary).
1888		2288
1889	The parameter C<$family> should best start with the name of the extension	2289	The parameter C<$family> should best start with the name of the extension
1890	using it, it should be unique.	2290	using it, it should be unique.
1891		2291
1892	=over 4	2292	=over 4
1893		2293
1894	=item $hashref = cf::db_get $family
1895
1896	Return a hashref for use by the extension C<$family>, which can be
1897	modified. After modifications, you have to call C<cf::db_dirty> or
1898	C<cf::db_sync>.
1899
1900	=item $value = cf::db_get $family => $key	2294	=item $value = cf::db_get $family => $key
1901		2295
1902	Returns a single value from the database	2296	Returns a single value from the database.
1903
1904	=item cf::db_put $family => $hashref
1905
1906	Stores the given family hashref into the database. Updates are delayed, if
1907	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1908		2297
1909	=item cf::db_put $family => $key => $value	2298	=item cf::db_put $family => $key => $value
1910		2299
1911	Stores the given C<$value> in the family hash. Updates are delayed, if you	2300	Stores the given C<$value> in the family.
1912	want the data to be synced to disk immediately, use C<cf::db_sync>.
1913
1914	=item cf::db_dirty
1915
1916	Marks the database as dirty, to be updated at a later time.
1917
1918	=item cf::db_sync
1919
1920	Immediately write the database to disk I<if it is dirty>.
1921		2301
1922	=cut	2302	=cut
1923		2303
1924	our $DB;	2304	our $DB;
1925		2305
1926	{	2306	sub db_init {
1927	my $path = cf::localdir . "/database.pst";	2307	unless ($DB) {
		2308	$DB = BDB::db_create $DB_ENV;
1928		2309
1929	sub db_load() {	2310	cf::sync_job {
1930	$DB = stat $path ? Storable::retrieve $path : { };	2311	eval {
1931	}	2312	$DB->set_flags (BDB::CHKSUM);
1932		2313
1933	my $pid;	2314	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
1934		2315	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
1935	sub db_save() {	2316	cf::cleanup "db_open(db): $!" if $!;
1936	waitpid $pid, 0 if $pid;	2317	};
1937	if (0 == ($pid = fork)) {	2318	cf::cleanup "db_open(db): $@" if $@;
1938	$DB->{_meta}{version} = 1;
1939	Storable::nstore $DB, "$path~";
1940	rename "$path~", $path;
1941	cf::_exit 0 if defined $pid;
1942	}	2319	};
1943	}
1944
1945	my $dirty;
1946
1947	sub db_sync() {
1948	db_save if $dirty;
1949	undef $dirty;
1950	}
1951
1952	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1953	db_sync;
1954	});	2320	}
		2321	}
1955		2322
1956	sub db_dirty() {
1957	$dirty = 1;
1958	$idle->start;
1959	}
1960
1961	sub db_get($;$) {	2323	sub db_get($$) {
1962	@_ >= 2	2324	my $key = "$_[0]/$_[1]";
1963	? $DB->{$_[0]}{$_[1]}
1964	: ($DB->{$_[0]} ||= { })
1965	}
1966		2325
		2326	cf::sync_job {
		2327	BDB::db_get $DB, undef, $key, my $data;
		2328
		2329	$! ? ()
		2330	: $data
		2331	}
		2332	}
		2333
1967	sub db_put($$;$) {	2334	sub db_put($$$) {
1968	if (@_ >= 3) {	2335	BDB::dbreq_pri 4;
1969	$DB->{$_[0]}{$_[1]} = $_[2];	2336	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
1970	} else {	2337	}
1971	$DB->{$_[0]} = $_[1];
1972	}
1973	db_dirty;
1974	}
1975		2338
1976	cf::global->attach (	2339	=item cf::cache $id => [$paths...], $processversion => $process
1977	prio => 10000,	2340
1978	on_cleanup => sub {	2341	Generic caching function that returns the value of the resource $id,
1979	db_sync;	2342	caching and regenerating as required.
		2343
		2344	This function can block.
		2345
		2346	=cut
		2347
		2348	sub cache {
		2349	my ($id, $src, $processversion, $process) = @_;
		2350
		2351	my $meta =
		2352	join "\x00",
		2353	$processversion,
		2354	map {
		2355	aio_stat $_
		2356	and Carp::croak "$_: $!";
		2357
		2358	($_, (stat _)[7,9])
		2359	} @$src;
		2360
		2361	my $dbmeta = db_get cache => "$id/meta";
		2362	if ($dbmeta ne $meta) {
		2363	# changed, we may need to process
		2364
		2365	my @data;
		2366	my $md5;
		2367
		2368	for (0 .. $#$src) {
		2369	0 <= aio_load $src->[$_], $data[$_]
		2370	or Carp::croak "$src->[$_]: $!";
1980	},	2371	}
1981	);	2372
		2373	# if processing is expensive, check
		2374	# checksum first
		2375	if (1) {
		2376	$md5 =
		2377	join "\x00",
		2378	$processversion,
		2379	map {
		2380	Coro::cede;
		2381	($src->[$_], Digest::MD5::md5_hex $data[$_])
		2382	} 0.. $#$src;
		2383
		2384
		2385	my $dbmd5 = db_get cache => "$id/md5";
		2386	if ($dbmd5 eq $md5) {
		2387	db_put cache => "$id/meta", $meta;
		2388
		2389	return db_get cache => "$id/data";
		2390	}
		2391	}
		2392
		2393	my $t1 = Time::HiRes::time;
		2394	my $data = $process->(\@data);
		2395	my $t2 = Time::HiRes::time;
		2396
		2397	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		2398
		2399	db_put cache => "$id/data", $data;
		2400	db_put cache => "$id/md5" , $md5;
		2401	db_put cache => "$id/meta", $meta;
		2402
		2403	return $data;
		2404	}
		2405
		2406	db_get cache => "$id/data"
1982	}	2407	}
		2408
		2409	=item fork_call { }, $args
		2410
		2411	Executes the given code block with the given arguments in a seperate
		2412	process, returning the results. Everything must be serialisable with
		2413	Coro::Storable. May, of course, block. Note that the executed sub may
		2414	never block itself or use any form of Event handling.
		2415
		2416	=cut
		2417
		2418	sub fork_call(&@) {
		2419	my ($cb, @args) = @_;
		2420
		2421	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		2422	# or die "socketpair: $!";
		2423	pipe my $fh1, my $fh2
		2424	or die "pipe: $!";
		2425
		2426	if (my $pid = fork) {
		2427	close $fh2;
		2428
		2429	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
		2430	$res = Coro::Storable::thaw $res;
		2431
		2432	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		2433
		2434	die $$res unless "ARRAY" eq ref $res;
		2435
		2436	return wantarray ? @$res : $res->[-1];
		2437	} else {
		2438	local $SIG{__WARN__};
		2439	eval {
		2440	local $SIG{__DIE__};
		2441	close $fh1;
		2442
		2443	my @res = eval { $cb->(@args) };
		2444	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
		2445	};
		2446
		2447	warn $@ if $@;
		2448	_exit 0;
		2449	}
		2450	}
		2451
		2452
1983		2453
1984	#############################################################################	2454	#############################################################################
1985	# the server's main()	2455	# the server's init and main functions
		2456
		2457	sub load_facedata($) {
		2458	my ($path) = @_;
		2459
		2460	warn "loading facedata from $path\n";
		2461
		2462	my $facedata;
		2463	0 < aio_load $path, $facedata
		2464	or die "$path: $!";
		2465
		2466	$facedata = Coro::Storable::thaw $facedata;
		2467
		2468	$facedata->{version} == 2
		2469	or cf::cleanup "$path: version mismatch, cannot proceed.";
		2470
		2471	{
		2472	my $faces = $facedata->{faceinfo};
		2473
		2474	while (my ($face, $info) = each %$faces) {
		2475	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		2476	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
		2477	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2478	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
		2479	Coro::cede;
		2480	}
		2481
		2482	while (my ($face, $info) = each %$faces) {
		2483	next unless $info->{smooth};
		2484	my $idx = cf::face::find $face
		2485	or next;
		2486	if (my $smooth = cf::face::find $info->{smooth}) {
		2487	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2488	} else {
		2489	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2490	}
		2491	Coro::cede;
		2492	}
		2493	}
		2494
		2495	{
		2496	my $anims = $facedata->{animinfo};
		2497
		2498	while (my ($anim, $info) = each %$anims) {
		2499	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2500	Coro::cede;
		2501	}
		2502
		2503	cf::anim::invalidate_all; # d'oh
		2504	}
		2505
		2506	1
		2507	}
		2508
		2509	sub reload_regions {
		2510	load_resource_file "$MAPDIR/regions"
		2511	or die "unable to load regions file\n";
		2512	}
		2513
		2514	sub reload_facedata {
		2515	load_facedata "$DATADIR/facedata"
		2516	or die "unable to load facedata\n";
		2517	}
		2518
		2519	sub reload_archetypes {
		2520	load_resource_file "$DATADIR/archetypes"
		2521	or die "unable to load archetypes\n";
		2522	}
		2523
		2524	sub reload_treasures {
		2525	load_resource_file "$DATADIR/treasures"
		2526	or die "unable to load treasurelists\n";
		2527	}
		2528
		2529	sub reload_resources {
		2530	warn "reloading resource files...\n";
		2531
		2532	reload_regions;
		2533	reload_facedata;
		2534	reload_archetypes;
		2535	reload_treasures;
		2536
		2537	warn "finished reloading resource files\n";
		2538	}
		2539
		2540	sub init {
		2541	reload_resources;
		2542	}
1986		2543
1987	sub cfg_load {	2544	sub cfg_load {
1988	open my $fh, "<:utf8", cf::confdir . "/config"	2545	open my $fh, "<:utf8", "$CONFDIR/config"
1989	or return;	2546	or return;
1990		2547
1991	local $/;	2548	local $/;
1992	*CFG = YAML::Syck::Load <$fh>;	2549	*CFG = YAML::Syck::Load <$fh>;
		2550
		2551	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		2552
		2553	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2554	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2555
		2556	if (exists $CFG{mlockall}) {
		2557	eval {
		2558	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2559	and die "WARNING: m(un)lockall failed: $!\n";
		2560	};
		2561	warn $@ if $@;
		2562	}
1993	}	2563	}
1994		2564
1995	sub main {	2565	sub main {
1996	# we must not ever block the main coroutine	2566	# we must not ever block the main coroutine
1997	local $Coro::idle = sub {	2567	local $Coro::idle = sub {
1998	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	2568	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1999	(Coro::unblock_sub {	2569	(async {
2000	Event::one_event;	2570	Event::one_event;
2001	})->();	2571	})->prio (Coro::PRIO_MAX);
2002	};	2572	};
2003		2573
2004	cfg_load;	2574	cfg_load;
2005	db_load;	2575	db_init;
2006	load_extensions;	2576	load_extensions;
		2577
		2578	$TICK_WATCHER->start;
2007	Event::loop;	2579	Event::loop;
2008	}	2580	}
2009		2581
2010	#############################################################################	2582	#############################################################################
2011	# initialisation	2583	# initialisation and cleanup
2012		2584
		2585	# install some emergency cleanup handlers
		2586	BEGIN {
		2587	for my $signal (qw(INT HUP TERM)) {
		2588	Event->signal (
		2589	reentrant => 0,
		2590	data => WF_AUTOCANCEL,
		2591	signal => $signal,
		2592	prio => 0,
		2593	cb => sub {
		2594	cf::cleanup "SIG$signal";
		2595	},
		2596	);
		2597	}
		2598	}
		2599
		2600	sub emergency_save() {
		2601	my $freeze_guard = cf::freeze_mainloop;
		2602
		2603	warn "enter emergency perl save\n";
		2604
		2605	cf::sync_job {
		2606	# use a peculiar iteration method to avoid tripping on perl
		2607	# refcount bugs in for. also avoids problems with players
		2608	# and maps saved/destroyed asynchronously.
		2609	warn "begin emergency player save\n";
		2610	for my $login (keys %cf::PLAYER) {
		2611	my $pl = $cf::PLAYER{$login} or next;
		2612	$pl->valid or next;
		2613	$pl->save;
		2614	}
		2615	warn "end emergency player save\n";
		2616
		2617	warn "begin emergency map save\n";
		2618	for my $path (keys %cf::MAP) {
		2619	my $map = $cf::MAP{$path} or next;
		2620	$map->valid or next;
		2621	$map->save;
		2622	}
		2623	warn "end emergency map save\n";
		2624
		2625	warn "begin emergency database checkpoint\n";
		2626	BDB::db_env_txn_checkpoint $DB_ENV;
		2627	warn "end emergency database checkpoint\n";
		2628	};
		2629
		2630	warn "leave emergency perl save\n";
		2631	}
		2632
		2633	sub post_cleanup {
		2634	my ($make_core) = @_;
		2635
		2636	warn Carp::longmess "post_cleanup backtrace"
		2637	if $make_core;
		2638	}
		2639
2013	sub reload() {	2640	sub do_reload_perl() {
2014	# can/must only be called in main	2641	# can/must only be called in main
2015	if ($Coro::current != $Coro::main) {	2642	if ($Coro::current != $Coro::main) {
2016	warn "can only reload from main coroutine\n";	2643	warn "can only reload from main coroutine";
2017	return;	2644	return;
2018	}	2645	}
2019		2646
2020	warn "reloading...";	2647	warn "reloading...";
2021		2648
2022	local $FREEZE = 1;	2649	warn "entering sync_job";
		2650
		2651	cf::sync_job {
		2652	cf::write_runtime; # external watchdog should not bark
2023	cf::emergency_save;	2653	cf::emergency_save;
		2654	cf::write_runtime; # external watchdog should not bark
2024		2655
2025	eval {	2656	warn "syncing database to disk";
		2657	BDB::db_env_txn_checkpoint $DB_ENV;
		2658
2026	# if anything goes wrong in here, we should simply crash as we already saved	2659	# if anything goes wrong in here, we should simply crash as we already saved
2027		2660
2028	# cancel all watchers	2661	warn "cancelling all WF_AUTOCANCEL watchers";
2029	for (Event::all_watchers) {	2662	for (Event::all_watchers) {
2030	$_->cancel if $_->data & WF_AUTOCANCEL;	2663	$_->cancel if $_->data & WF_AUTOCANCEL;
2031	}	2664	}
2032		2665
		2666	warn "flushing outstanding aio requests";
		2667	for (;;) {
		2668	BDB::flush;
		2669	IO::AIO::flush;
		2670	Coro::cede;
		2671	last unless IO::AIO::nreqs || BDB::nreqs;
		2672	warn "iterate...";
		2673	}
		2674
		2675	++$RELOAD;
		2676
2033	# cancel all extension coros	2677	warn "cancelling all extension coros";
2034	$_->cancel for values %EXT_CORO;	2678	$_->cancel for values %EXT_CORO;
2035	%EXT_CORO = ();	2679	%EXT_CORO = ();
2036		2680
2037	# unload all extensions	2681	warn "removing commands";
2038	for (@exts) {	2682	%COMMAND = ();
		2683
		2684	warn "removing ext commands";
		2685	%EXTCMD = ();
		2686
		2687	warn "unloading/nuking all extensions";
		2688	for my $pkg (@EXTS) {
2039	warn "unloading <$_>";	2689	warn "... unloading $pkg";
2040	unload_extension $_;	2690
		2691	if (my $cb = $pkg->can ("unload")) {
		2692	eval {
		2693	$cb->($pkg);
		2694	1
		2695	} or warn "$pkg unloaded, but with errors: $@";
2041	}	2696	}
2042		2697
		2698	warn "... nuking $pkg";
		2699	Symbol::delete_package $pkg;
		2700	}
		2701
2043	# unload all modules loaded from $LIBDIR	2702	warn "unloading all perl modules loaded from $LIBDIR";
2044	while (my ($k, $v) = each %INC) {	2703	while (my ($k, $v) = each %INC) {
2045	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2704	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2046		2705
2047	warn "removing <$k>";	2706	warn "... unloading $k";
2048	delete $INC{$k};	2707	delete $INC{$k};
2049		2708
2050	$k =~ s/\.pm$//;	2709	$k =~ s/\.pm$//;
2051	$k =~ s/\//::/g;	2710	$k =~ s/\//::/g;
2052		2711
…		…
2055	}	2714	}
2056		2715
2057	Symbol::delete_package $k;	2716	Symbol::delete_package $k;
2058	}	2717	}
2059		2718
2060	# sync database to disk
2061	cf::db_sync;
2062	IO::AIO::flush;
2063
2064	# get rid of safe::, as good as possible	2719	warn "getting rid of safe::, as good as possible";
2065	Symbol::delete_package "safe::$_"	2720	Symbol::delete_package "safe::$_"
2066	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2721	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2067		2722
2068	# remove register_script_function callbacks
2069	# TODO
2070
2071	# unload cf.pm "a bit"	2723	warn "unloading cf.pm \"a bit\"";
2072	delete $INC{"cf.pm"};	2724	delete $INC{"cf.pm"};
		2725	delete $INC{"cf/pod.pm"};
2073		2726
2074	# don't, removes xs symbols, too,	2727	# don't, removes xs symbols, too,
2075	# and global variables created in xs	2728	# and global variables created in xs
2076	#Symbol::delete_package __PACKAGE__;	2729	#Symbol::delete_package __PACKAGE__;
2077		2730
2078	# reload cf.pm	2731	warn "unload completed, starting to reload now";
		2732
2079	warn "reloading cf.pm";	2733	warn "reloading cf.pm";
2080	require cf;	2734	require cf;
2081	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2735	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2082		2736
2083	# load config and database again	2737	warn "loading config and database again";
2084	cf::cfg_load;	2738	cf::cfg_load;
2085	cf::db_load;
2086		2739
2087	# load extensions
2088	warn "load extensions";	2740	warn "loading extensions";
2089	cf::load_extensions;	2741	cf::load_extensions;
2090		2742
2091	# reattach attachments to objects	2743	warn "reattaching attachments to objects/players";
2092	warn "reattach";	2744	_global_reattach; # objects, sockets
2093	_global_reattach;	2745	warn "reattaching attachments to maps";
2094	};	2746	reattach $_ for values %MAP;
		2747	warn "reattaching attachments to players";
		2748	reattach $_ for values %PLAYER;
2095		2749
2096	if ($@) {	2750	warn "leaving sync_job";
		2751
		2752	1
		2753	} or do {
2097	warn $@;	2754	warn $@;
2098	warn "error while reloading, exiting.";	2755	warn "error while reloading, exiting.";
2099	exit 1;	2756	exit 1;
2100	}	2757	};
2101		2758
2102	warn "reloaded successfully";	2759	warn "reloaded";
2103	};	2760	};
2104		2761
2105	#############################################################################	2762	our $RELOAD_WATCHER; # used only during reload
2106		2763
2107	unless ($LINK_MAP) {	2764	sub reload_perl() {
2108	$LINK_MAP = cf::map::new;	2765	# doing reload synchronously and two reloads happen back-to-back,
		2766	# coro crashes during coro_state_free->destroy here.
2109		2767
2110	$LINK_MAP->width (41);	2768	$RELOAD_WATCHER ||= Event->timer (
2111	$LINK_MAP->height (41);	2769	reentrant => 0,
2112	$LINK_MAP->alloc;
2113	$LINK_MAP->path ("{link}");
2114	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2115	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2116
2117	# dirty hack because... archetypes are not yet loaded
2118	Event->timer (
2119	after => 2,	2770	after => 0,
		2771	data => WF_AUTOCANCEL,
2120	cb => sub {	2772	cb => sub {
2121	$_[0]->w->cancel;	2773	do_reload_perl;
2122		2774	undef $RELOAD_WATCHER;
2123	# provide some exits "home"
2124	my $exit = cf::object::new "exit";
2125
2126	$exit->slaying ($EMERGENCY_POSITION->[0]);
2127	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2128	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2129
2130	$LINK_MAP->insert ($exit->clone, 19, 19);
2131	$LINK_MAP->insert ($exit->clone, 19, 20);
2132	$LINK_MAP->insert ($exit->clone, 19, 21);
2133	$LINK_MAP->insert ($exit->clone, 20, 19);
2134	$LINK_MAP->insert ($exit->clone, 20, 21);
2135	$LINK_MAP->insert ($exit->clone, 21, 19);
2136	$LINK_MAP->insert ($exit->clone, 21, 20);
2137	$LINK_MAP->insert ($exit->clone, 21, 21);
2138
2139	$exit->destroy;
2140	});	2775	},
2141		2776	);
2142	$LINK_MAP->{deny_save} = 1;
2143	$LINK_MAP->{deny_reset} = 1;
2144
2145	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2146	}	2777	}
2147
2148	register "<global>", __PACKAGE__;
2149		2778
2150	register_command "reload" => sub {	2779	register_command "reload" => sub {
2151	my ($who, $arg) = @_;	2780	my ($who, $arg) = @_;
2152		2781
2153	if ($who->flag (FLAG_WIZ)) {	2782	if ($who->flag (FLAG_WIZ)) {
2154	$who->message ("start of reload.");
2155	reload;
2156	$who->message ("end of reload.");	2783	$who->message ("reloading server.");
		2784	async { reload_perl };
2157	}	2785	}
2158	};	2786	};
2159		2787
2160	unshift @INC, $LIBDIR;	2788	unshift @INC, $LIBDIR;
		2789
		2790	my $bug_warning = 0;
		2791
		2792	our @WAIT_FOR_TICK;
		2793	our @WAIT_FOR_TICK_BEGIN;
		2794
		2795	sub wait_for_tick {
		2796	return unless $TICK_WATCHER->is_active;
		2797	return if $Coro::current == $Coro::main;
		2798
		2799	my $signal = new Coro::Signal;
		2800	push @WAIT_FOR_TICK, $signal;
		2801	$signal->wait;
		2802	}
		2803
		2804	sub wait_for_tick_begin {
		2805	return unless $TICK_WATCHER->is_active;
		2806	return if $Coro::current == $Coro::main;
		2807
		2808	my $signal = new Coro::Signal;
		2809	push @WAIT_FOR_TICK_BEGIN, $signal;
		2810	$signal->wait;
		2811	}
2161		2812
2162	$TICK_WATCHER = Event->timer (	2813	$TICK_WATCHER = Event->timer (
2163	reentrant => 0,	2814	reentrant => 0,
		2815	parked => 1,
2164	prio => 0,	2816	prio => 0,
2165	at => $NEXT_TICK || $TICK,	2817	at => $NEXT_TICK || $TICK,
2166	data => WF_AUTOCANCEL,	2818	data => WF_AUTOCANCEL,
2167	cb => sub {	2819	cb => sub {
2168	unless ($FREEZE) {	2820	if ($Coro::current != $Coro::main) {
		2821	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2822	unless ++$bug_warning > 10;
		2823	return;
		2824	}
		2825
		2826	$NOW = Event::time;
		2827
2169	cf::server_tick; # one server iteration	2828	cf::server_tick; # one server iteration
		2829
2170	$RUNTIME += $TICK;	2830	$RUNTIME += $TICK;
2171	}
2172
2173	$NEXT_TICK += $TICK;	2831	$NEXT_TICK += $TICK;
		2832
		2833	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		2834	$NEXT_RUNTIME_WRITE = $NOW + 10;
		2835	Coro::async_pool {
		2836	write_runtime
		2837	or warn "ERROR: unable to write runtime file: $!";
		2838	};
		2839	}
		2840
		2841	# my $AFTER = Event::time;
		2842	# warn $AFTER - $NOW;#d#
2174		2843
2175	# if we are delayed by four ticks or more, skip them all	2844	# if we are delayed by four ticks or more, skip them all
2176	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2845	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2177		2846
2178	$TICK_WATCHER->at ($NEXT_TICK);	2847	$TICK_WATCHER->at ($NEXT_TICK);
2179	$TICK_WATCHER->start;	2848	$TICK_WATCHER->start;
		2849
		2850	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		2851	$sig->send;
		2852	}
		2853	while (my $sig = shift @WAIT_FOR_TICK) {
		2854	$sig->send;
		2855	}
		2856
		2857	_post_tick;
2180	},	2858	},
2181	);	2859	);
2182		2860
		2861	{
2183	IO::AIO::max_poll_time $TICK * 0.2;	2862	BDB::max_poll_time $TICK * 0.1;
2184		2863	$BDB_POLL_WATCHER = Event->io (
2185	Event->io (	2864	reentrant => 0,
2186	fd => IO::AIO::poll_fileno,	2865	fd => BDB::poll_fileno,
2187	poll => 'r',	2866	poll => 'r',
2188	prio => 5,	2867	prio => 0,
2189	data => WF_AUTOCANCEL,
2190	cb => \&IO::AIO::poll_cb,
2191	);
2192
2193	Event->timer (
2194	data => WF_AUTOCANCEL,	2868	data => WF_AUTOCANCEL,
2195	after => 0,	2869	cb => \&BDB::poll_cb,
2196	interval => 10,	2870	);
2197	cb => sub {	2871	BDB::min_parallel 8;
2198	(Coro::unblock_sub {	2872
2199	write_runtime	2873	BDB::set_sync_prepare {
2200	or warn "ERROR: unable to write runtime file: $!";	2874	my $status;
		2875	my $current = $Coro::current;
		2876	(
		2877	sub {
		2878	$status = $!;
		2879	$current->ready; undef $current;
		2880	},
		2881	sub {
		2882	Coro::schedule while defined $current;
		2883	$! = $status;
		2884	},
		2885	)
		2886	};
		2887
		2888	unless ($DB_ENV) {
		2889	$DB_ENV = BDB::db_env_create;
		2890
		2891	cf::sync_job {
		2892	eval {
		2893	BDB::db_env_open
		2894	$DB_ENV,
		2895	$BDBDIR,
		2896	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		2897	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		2898	0666;
		2899
		2900	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		2901
		2902	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		2903	$DB_ENV->set_lk_detect;
		2904	};
		2905
		2906	cf::cleanup "db_env_open(db): $@" if $@;
2201	})->();	2907	};
2202	},	2908	}
2203	);	2909	}
		2910
		2911	{
		2912	IO::AIO::min_parallel 8;
		2913
		2914	undef $Coro::AIO::WATCHER;
		2915	IO::AIO::max_poll_time $TICK * 0.1;
		2916	$AIO_POLL_WATCHER = Event->io (
		2917	reentrant => 0,
		2918	data => WF_AUTOCANCEL,
		2919	fd => IO::AIO::poll_fileno,
		2920	poll => 'r',
		2921	prio => 6,
		2922	cb => \&IO::AIO::poll_cb,
		2923	);
		2924	}
		2925
		2926	# load additional modules
		2927	use cf::pod;
2204		2928
2205	END { cf::emergency_save }	2929	END { cf::emergency_save }
2206		2930
2207	1	2931	1
2208		2932

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